AT27C400-90PC

AT27C400-90PC Datasheet


The AT27C400 is a low-power, high-performance, 4,194,304-bit, one-time program-

Part Datasheet
AT27C400-90PC AT27C400-90PC AT27C400-90PC (pdf)
Related Parts Information
AT27C400-90JC AT27C400-90JC AT27C400-90JC
PDF Datasheet Preview
• Fast Read Access Time 90 ns
• Word-wide or Byte-wide Configurable
• 4-megabit Flash and Mask ROM Compatible
• Low-power CMOS Operation
100 µA Maximum Standby 50 mA Maximum Active at 5 MHz
• Wide Selection of JEDEC Standard Packages 40-lead 600 mil PDIP 44-lead SOIC SOP 48-lead TSOP 12 mm x 20 mm
• 5V ± 10% Power Supply
• High-reliability CMOS Technology 2,000V ESD Protection 200 mA Latch-up Immunity
• Rapid Programming Algorithm 50 µs/Word Typical
• CMOS- and TTL-compatible Inputs and Outputs
• Integrated Product Identification Code
• Commercial and Industrial Temperature Ranges

The AT27C400 is a low-power, high-performance, 4,194,304-bit, one-time program-
mable read-only memory OTP EPROM organized as either 256K by 16 or 512K by 8
bits. It requires a single 5V power supply in normal read mode operation. Any word
can be accessed in less than 90 ns, eliminating the need for speed-reducing WAIT
states. The by-16 organization makes this part ideal for high-performance 16- and 32-
bit microprocessor systems.
continued

Pin Configurations

PLCC
6 A5 5 A6 4 A7 3 A17 2 NC 1 NC 44 NC 43 A8 42 A9 41 A10 40 A11

Pin Name

Function

A0 - A17

Addresses

O0 - O15

Outputs

O15/A-1

Output/Address

BYTE/VPP

Byte Mode/ Program Supply

Chip Enable

Output Enable

No Connect

Note Both GND pins must be connected.

PDIP Top View

SOIC SOP

A17 1 A7 2 A6 3 A5 4 A4 5 A3 6 A2 7 A1 8 A0 9 CE 10

GND 11 OE 12 O0 13 O8 14 O1 15 O9 16 O2 17 O10 18 O3 19 O11 20
40 A8 39 A9 38 A10 37 A11 36 A12 35 A13 34 A14 33 A15 32 A16 31 BYTE/VPP 30 GND 29 O15/A-1 28 O7 27 O14 26 O6 25 O13 24 O5 23 O12 22 O4 21 VCC

NC 1 NC 2 A17 3 A7 4 A6 5 A5 6 A4 7 A3 8 A2 9 A1 10 A0 11 CE 12 GND 13 OE 14 O0 15 O8 16 O1 17 O9 18 O2 19 O10 20 O3 21 O11 22
44 NC 43 NC 42 A8 41 A9 40 A10 39 A11 38 A12 37 A13 36 A14 35 A15 34 A16 33 BYTE/VPP 32 GND 31 O15/A-1 30 O7 29 O14 28 O6 27 O13 26 O5 25 O12 24 O4 23 VCC

A4 7 A3 8 A2 9 A1 10 A0 11 CE 12 GND 13 OE 14 O0 15 O8 16 O1 17
39 A12 38 A13 37 A14 36 A15 35 A16 34 BYTE/VPP 33 GND 32 O15/A-1 31 O7 30 O14 29 O6

O9 18 O2 19 O10 20 O3 21 O11 22 NC 23 VCC 24 O4 25 O12 26 O5 27 O13 28

A15 1 A14 2 A13 3 A12 4 A11 5 A10 6

A9 7 A8 8 NC 9 NC 10 NC 11 NC 12 NC 13 NC 14 NC 15 NC 16 A17 17 A7 18 A6 19 A5 20 A4 21 A3 22 A2 23 A1 24

TSOP Type 1
48 A16 47 BYTE/VPP 46 GND 45 O15/A-1 44 I/O7 43 O14 42 O6 41 O13 40 O5 39 O12 38 O4 37 VCC 36 O11 35 O3 34 O10 33 O2 32 O9 31 O1 30 O8 29 O0 28 OE 27 GND 26 CE 25 A0
4-megabit 256K x 16 or 512K x 8 OTP EPROM AT27C400
Ordering Information
tACC

ICC mA

Active

Standby
Ordering Code

AT27C400-90PC AT27C400-90RC AT27C400-90TC AT27C400-90JC

AT27C400-90PI AT27C400-90RI AT27C400-90TI AT27C400-90JI

AT27C400-12PC AT27C400-12RC AT27C400-12TC AT27C400-12JC

AT27C400-12PI AT27C400-12RI AT27C400-12TI AT27C400-12JI

AT27C400-15PC AT27C400-15RC AT27C400-15TC AT27C400-15JC

AT27C400-15PI AT27C400-15RI AT27C400-15TI AT27C400-15JI

Package
40P6 44R 48T 44J
40P6 44R 48T 44J
40P6 44R 48T 44J
40P6 44R 48T 44J
40P6 44R 48T 44J
40P6 44R 48T 44J

Operation Range Commercial 0°C to 70°C

Industrial -40°C to 85°C

Commercial 0°C to 70°C

Industrial -40°C to 85°C

Commercial 0°C to 70°C

Industrial -40°C to 85°C
40P6 44R 48T 44J

Package Type 40-lead, Wide, Plastic Dual Inline Package PDIP 44-lead, Wide, Plastic Gull Wing Small Outline Package SOIC/SOP 48-lead, Plastic Thin Small Outline Package TSOP 12 x 20 mm 44-lead, Plastic J-leaded Chip Carrier PLCC

AT27C400

Packaging Information
40P6, 40-lead, Wide, Plastic Dual Inline Package PDIP Dimensions in Inches and Millimeters

JEDEC STANDARD MS-011 AC

SEATING PLANE
0 REF 15
48T, 48-lead, Plastic Thin Small Outline Package TSOP Dimensions in Millimeters and Inches *

JEDEC OUTLINE MO-142 DD

AT27C400
44R, 44-lead, Wide, Plastic Gull Wing Small Outline SOIC Dimensions in Inches and Millimeters
44J, 44-lead, Plastic J-leaded Chip Carrier PLCC Dimensions in Inches and Millimeters

JEDEC STANDARD MS-018 AC

X 45° PIN NO. 1 IDENTIFY

X 30° - 45°
.650 16.5 SQ
.685 17.4 SQ

REF SQ

X 45° MAX 3X
*Controlling dimension millimeters 11
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Datasheet ID: AT27C400-90PC 518942