CY7C464A-10JC

CY7C464A-10JC Datasheet

CY7C460A/CY7C462A CY7C464A/CY7C466A

Part	Datasheet
CY7C464A-10JC	CY7C464A-10JC (pdf)

Related Parts	Information
CY7C466A-10JC	CY7C466A-10JC
CY7C460A-10JC	CY7C460A-10JC
CY7C464A-15JC	CY7C464A-15JC

PDF Datasheet Preview
CY7C460A/CY7C462A CY7C464A/CY7C466A Asynchronous, Cascadable 8K/16K/32K/64K x9 FIFOs Functional Description • High-speed, low-power, first-in first-out FIFO memories • 8K x 9 FIFO CY7C460A • 16K x 9 FIFO CY7C462A • 32K x 9 FIFO CY7C464A • 64K x 9 FIFO CY7C466A • 10-ns access times, 20-ns read/write cycle times • High-speed 50-MHz read/write independent of depth/width • Low operating power ICC= 60 mA ISB =8 mA • Asynchronous read/write • Empty and Full flags • Half Full flag in standalone mode • Retransmit in standalone mode • TTL-compatible • Width and Depth Expansion Capability • 5V ± 10% supply • PLCC, LCC, 300-mil and 600-mil DIP packaging • Three-state outputs • Pin compatible density upgrade to CY7C42X/46X family • Pin compatible and functionally equivalent to IDT7205, IDT7206, IDT7207, IDT7208 The CY7C460A, CY7C462A, CY7C464A, and CY7C466A are respectively, 8K, 16K, 32K, and 64K words by 9-bit wide first-in first-out FIFO memories. Each FIFO memory is organized such that the data is read in the same sequential order that it was written. Full and Empty flags are provided to prevent overrun and underrun. Three additional pins are also provided to facilitate unlimited expansion in width, depth, or both. The depth expansion technique steers the control signals from one device to another by passing tokens. The read and write operations may be asynchronous each can occur at a rate of up to 50 MHz. The write operation occurs when the Write W signal is LOW. Read occurs when Read R goes LOW. The nine data outputs go to the high-impedance state when R is HIGH. A Half Full HF output flag is provided that is valid in the standalone single device and width expansion configurations. In the depth expansion configuration, this pin provides the expansion out XO information that is used to tell the next FIFO that it will be activated. In the standalone and width expansion configurations, a LOW on the Retransmit RT input causes the FIFOs to retransmit the data. Read Enable R and Write Enable W must both be HIGH during a retransmit cycle, and then R is used to access the data. The CY7C460A, CY7C462A, CY7C464A, and CY7C466A are fabricated using Cypress’s advanced RAM3 CMOS technology. Input ESD protection is greater than 2000V and latch-up is prevented by careful layout and the use of guard rings. Logic Block Diagram DATA INPUTS D0−D 8 WRITE CONTROL WRITE POINTER DUAL PORT RAM ARRAY 8K x 9 16K x 9 32K x 9 64K x 9 READ CONTROL STATE BUFFERS DATA OUTPUTS Q0-Q 8 READ POINTER RESET LOGIC Pin Configurations PLCC/LCC Top View D2 D1 D0 XI FF Q0 Q1 NC Q2 MR FL/RT 4 3 2 1 32 31 30 29 D6 28 D7 27 NC 7C460A 7C462A 26 FL/RT 7C464A 25 MR 7C466A 24 EF 23 XO/HF Q0 22 Q7 Ordering Information 8K x 9 Asynchronous FIFO Speed ns Ordering Code CY7C460A-10JC CY7C460A-10PC CY7C460A-10PTC CY7C460A-10JI CY7C460A-15JC CY7C460A-15PC CY7C460A-15PTC CY7C460A-25JC CY7C460A-25PC CY7C460A-25PTC CY7C460A/CY7C462A CY7C464A/CY7C466A Package Name J65 P15 P21 J65 P15 P21 J65 P15 P21 Package Type 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP Operating Range Commercial Industrial Commercial Commercial 16K x 9 Asynchronous FIFO Speed ns Ordering Code CY7C462A-10JC CY7C462A-10PC CY7C462A-10PTC CY7C462A-10JI CY7C462A-15JC CY7C462A-15PC CY7C462A-15PTC CY7C462A-25JC CY7C462A-25PC CY7C462A-25PTC Package Name J65 P15 P21 J65 P15 P21 J65 P15 P21 Package Type 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP Operating Range Commercial Industrial Commercial Commercial 32K x 9 Asynchronous FIFO Speed ns Ordering Code CY7C464A-10JC CY7C464A-10PC CY7C464A-10PTC CY7C464A-10JI CY7C464A-15JC CY7C464A-15PC CY7C464A-15PTC CY7C464A-15LMB CY7C464A-25JC CY7C464A-25PC CY7C464A-25PTC Package Name J65 P15 P21 J65 P15 P21 L55 J65 P15 P21 Package Type 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Pin Rectangular Leadless Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP Operating Range Commercial Industrial Commercial Military Commercial Page 10 of 15 CY7C460A/CY7C462A CY7C464A/CY7C466A Ordering Information continued 64K x 9 Asynchronous FIFO Speed ns Ordering Code CY7C466A-10JC CY7C466A-10PC CY7C466A-10PTC CY7C466A-10JI CY7C466A-15JC CY7C466A-15PC CY7C466A-15PTC CY7C466A-15LMB CY7C466A-25JC CY7C466A-25PC CY7C466A-25PTC Package Name J65 P15 P21 J65 P15 P21 L55 J65 P15 P21 Package Type 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Pin Rectangular Leadless Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP Operating Range Commercial Industrial Commercial Military Commercial Page 11 of 15 MILITARY SPECIFICATIONS Group A Subgroup Testing DC Characteristics Parameter VOH VOL VIH VIL Max. IIX ICC ISB1 ISB2 IOS IOZ Subgroups 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 CY7C460A/CY7C462A CY7C464A/CY7C466A Switching Characteristics Parameter tRC tA tRR tPR tLZR tDVR tHZR tWC tPW tHWZ tWR tSD tHD tMRSC tPMR tRMR tRPW tWPW tRTC tPRT tRTR tEFL tHFH tFFH tREF tRFF tWEF tWFF tWHF tRHF tRAE tRPE tWAF tWPF tXOL tXOH Subgroups 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 Document # 38-00627-A Page 12 of 15 Package Diagrams CY7C460A/CY7C462A CY7C464A/CY7C466A 32-Lead Plastic Leaded Chip Carrier J65 51-85002-B 32-Pin Rectangular Leadless Chip Carrier L55 MIL-STD-1835 C-12 51-80068 Page 13 of 15 Package Diagrams continued 28-Lead 600-Mil Molded DIP P15

PDF Datasheet Preview

CY7C460A/CY7C462A CY7C464A/CY7C466A

Asynchronous, Cascadable 8K/16K/32K/64K x9 FIFOs

Functional Description
• High-speed, low-power, first-in first-out FIFO memories
• 8K x 9 FIFO CY7C460A
• 16K x 9 FIFO CY7C462A
• 32K x 9 FIFO CY7C464A
• 64K x 9 FIFO CY7C466A
• 10-ns access times, 20-ns read/write cycle times
• High-speed 50-MHz read/write independent of
depth/width
• Low operating power

ICC= 60 mA ISB =8 mA
• Asynchronous read/write
• Empty and Full flags
• Half Full flag in standalone mode
• Retransmit in standalone mode
• TTL-compatible
• Width and Depth Expansion Capability
• 5V ± 10% supply
• PLCC, LCC, 300-mil and 600-mil DIP packaging
• Three-state outputs
• Pin compatible density upgrade to CY7C42X/46X family
• Pin compatible and functionally equivalent to IDT7205, IDT7206, IDT7207, IDT7208

The CY7C460A, CY7C462A, CY7C464A, and CY7C466A are respectively, 8K, 16K, 32K, and 64K words by 9-bit wide first-in first-out FIFO memories. Each FIFO memory is organized such that the data is read in the same sequential order that it was written. Full and Empty flags are provided to prevent overrun and underrun. Three additional pins are also provided to facilitate unlimited expansion in width, depth, or both. The depth expansion technique steers the control signals from one device to another by passing tokens.

The read and write operations may be asynchronous each can occur at a rate of up to 50 MHz. The write operation occurs when the Write W signal is LOW. Read occurs when Read R goes LOW. The nine data outputs go to the high-impedance state when R is HIGH.

A Half Full HF output flag is provided that is valid in the standalone single device and width expansion configurations. In the depth expansion configuration, this pin provides the expansion out XO information that is used to tell the next FIFO that it will be activated.

In the standalone and width expansion configurations, a LOW on the Retransmit RT input causes the FIFOs to retransmit the data. Read Enable R and Write Enable W must both be HIGH during a retransmit cycle, and then R is used to access the data.

The CY7C460A, CY7C462A, CY7C464A, and CY7C466A are fabricated using Cypress’s advanced RAM3 CMOS technology. Input ESD protection is greater than 2000V and latch-up is prevented by careful layout and the use of guard rings.

Logic Block Diagram

DATA INPUTS D0−D 8

WRITE CONTROL

WRITE POINTER

DUAL PORT RAM ARRAY
8K x 9
16K x 9 32K x 9 64K x 9

READ CONTROL

STATE

BUFFERS

DATA OUTPUTS Q0-Q 8

READ POINTER

RESET LOGIC

Pin Configurations

PLCC/LCC Top View

D2 D1 D0 XI FF Q0 Q1 NC Q2

MR FL/RT
4 3 2 1 32 31 30
29 D6
28 D7
27 NC
7C460A 7C462A
26 FL/RT
7C464A
25 MR
7C466A
24 EF
23 XO/HF Q0
22 Q7
Ordering Information
8K x 9 Asynchronous FIFO

Speed ns
Ordering Code

CY7C460A-10JC

CY7C460A-10PC

CY7C460A-10PTC

CY7C460A-10JI

CY7C460A-15JC

CY7C460A-15PC

CY7C460A-15PTC

CY7C460A-25JC

CY7C460A-25PC

CY7C460A-25PTC

CY7C460A/CY7C462A CY7C464A/CY7C466A

Package Name J65 P15 P21 J65 P15 P21 J65 P15 P21

Package Type 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP

Operating Range

Commercial

Industrial Commercial

Commercial
16K x 9 Asynchronous FIFO

Speed ns
Ordering Code

CY7C462A-10JC

CY7C462A-10PC

CY7C462A-10PTC

CY7C462A-10JI

CY7C462A-15JC

CY7C462A-15PC

CY7C462A-15PTC

CY7C462A-25JC

CY7C462A-25PC

CY7C462A-25PTC

Package Name J65 P15 P21 J65 P15 P21 J65 P15 P21

Package Type 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP

Operating Range

Commercial

Industrial Commercial

Commercial
32K x 9 Asynchronous FIFO

Speed ns
Ordering Code

CY7C464A-10JC

CY7C464A-10PC

CY7C464A-10PTC

CY7C464A-10JI

CY7C464A-15JC

CY7C464A-15PC

CY7C464A-15PTC

CY7C464A-15LMB

CY7C464A-25JC

CY7C464A-25PC

CY7C464A-25PTC

Package Name J65 P15 P21 J65 P15 P21 L55 J65 P15 P21

Package Type 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Pin Rectangular Leadless Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP

Operating Range

Commercial

Industrial Commercial

Military Commercial

Page 10 of 15

CY7C460A/CY7C462A CY7C464A/CY7C466A
Ordering Information continued
64K x 9 Asynchronous FIFO

Speed ns
Ordering Code

CY7C466A-10JC

CY7C466A-10PC

CY7C466A-10PTC

CY7C466A-10JI

CY7C466A-15JC

CY7C466A-15PC

CY7C466A-15PTC

CY7C466A-15LMB

CY7C466A-25JC

CY7C466A-25PC

CY7C466A-25PTC

Package Name J65 P15 P21 J65 P15 P21 L55 J65 P15 P21

Package Type 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Lead Plastic Leaded Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP 32-Pin Rectangular Leadless Chip Carrier 32-Lead Plastic Leaded Chip Carrier 28-Lead 600-Mil Molded DIP 28-Lead 300-Mil Molded DIP

Operating Range

Commercial

Industrial Commercial

Military Commercial

Page 11 of 15

MILITARY SPECIFICATIONS Group A Subgroup Testing

DC Characteristics

Parameter

VOH VOL VIH VIL Max. IIX ICC ISB1 ISB2 IOS IOZ

Subgroups 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3

CY7C460A/CY7C462A CY7C464A/CY7C466A

Switching Characteristics

Parameter
tRC tA tRR tPR tLZR tDVR tHZR tWC tPW tHWZ tWR tSD tHD tMRSC tPMR tRMR tRPW tWPW tRTC tPRT tRTR tEFL tHFH tFFH tREF tRFF tWEF tWFF tWHF tRHF tRAE tRPE tWAF tWPF tXOL tXOH

Subgroups 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11 9, 10, 11

Document # 38-00627-A

Page 12 of 15

Package Diagrams

CY7C460A/CY7C462A CY7C464A/CY7C466A
32-Lead Plastic Leaded Chip Carrier J65
51-85002-B
32-Pin Rectangular Leadless Chip Carrier L55

MIL-STD-1835 C-12
51-80068

Page 13 of 15

Package Diagrams continued
28-Lead 600-Mil Molded DIP P15

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Datasheet ID: CY7C464A-10JC 508110