AT27C020-70PI

AT27C020-70PI Datasheet

The AT27C020 is a low-power, high performance, 2,097,152-bit, one-time program-

Part	Datasheet
AT27C020-70PI	AT27C020-70PI (pdf)

Related Parts	Information
AT27C020-90TI	AT27C020-90TI
AT27C020-55PC	AT27C020-55PC
AT27C020-55PI	AT27C020-55PI
AT27C020-55TC	AT27C020-55TC
AT27C020-70JI	AT27C020-70JI
AT27C020-70TC	AT27C020-70TC
AT27C020-70TI	AT27C020-70TI
AT27C020-90JC	AT27C020-90JC
AT27C020-90PI	AT27C020-90PI
AT27C020-90PC	AT27C020-90PC
AT27C020-55JC	AT27C020-55JC
AT27C020-90JI	AT27C020-90JI
AT27C020-15TI	AT27C020-15TI
AT27C020-12JI	AT27C020-12JI
AT27C020-12JC	AT27C020-12JC
AT27C020-12PC	AT27C020-12PC
AT27C020-12PI	AT27C020-12PI
AT27C020-12TC	AT27C020-12TC
AT27C020-15JC	AT27C020-15JC
AT27C020-15JI	AT27C020-15JI
AT27C020-15PC	AT27C020-15PC
AT27C020-15PI	AT27C020-15PI
AT27C020-15TC	AT27C020-15TC
AT27C020-12TI	AT27C020-12TI
AT27C020-90TC	AT27C020-90TC
AT27C020-55TU	AT27C020-55TU
AT27C020-90TU	AT27C020-90TU
AT27C020-70PC	AT27C020-70PC
AT27C020-70JC	AT27C020-70JC

PDF Datasheet Preview
• Fast Read Access Time 55 ns • Low-power CMOS Operation 100 µA Max. Standby 25 mA Max. Active at 5 MHz • JEDEC Standard Packages 32-lead 600-mil PDIP 32-lead PLCC 32-lead TSOP • 5V ±=10% Supply • High-reliability CMOS Technology 2,000V ESD Protection 200 mA Latch-up Immunity • Rapid Programming Algorithm 100 µs/Byte Typical • CMOS- and TTL-compatible Inputs and Outputs • Integrated Product Identification Code • Commercial, Industrial and Automotive Temperature Ranges The AT27C020 is a low-power, high performance, 2,097,152-bit, one-time program- mable read-only memory OTP EPROM organized as 256K by 8 bits. It requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 55 ns, eliminating the need for speed-reducing WAIT states on high- performance microprocessor systems. continued Pin Configurations Pin Name A0 - A17 O0 - O7 CE OE PGM Function Addresses Outputs Chip Enable Output Enable Program Strobe PLCC Top View 4 A12 3 A15 2 A16 1 VPP 32 VCC 31 PGM 30 A17 A7 5 A6 6 A5 7 A4 8 A3 9 A2 10 A1 11 A0 12 O0 13 29 A14 28 A13 27 A8 26 A9 25 A11 24 OE 23 A10 22 CE 21 07 2-megabit 256K x 8 OTP EPROM AT27C020 01 14 02 15 GND 16 03 17 04 18 05 19 06 20 PDIP Top View VPP 1 A16 2 A15 3 A12 4 A7 5 A6 6 A5 7 A4 8 A3 9 A2 10 A1 11 A0 12 O0 13 O1 14 O2 15 GND 16 32 VCC 31 PGM 30 A17 29 A14 28 A13 27 A8 26 A9 25 A11 24 OE 23 A10 22 CE 21 07 20 06 19 05 18 04 17 03 A11 1 A9 2 A8 3 A13 4 A14 5 A17 6 PGM 7 VCC 8 VPP 9 A16 10 A15 11 A12 12 A7 13 A6 14 A5 15 A4 16 TSOP Top View Type 1 32 OE 31 A10 30 CE 29 07 28 06 27 05 26 04 25 03 24 GND 23 02 22 01 21 O0 20 A0 19 A1 18 A2 17 A3 In read mode, the AT27C020 typically consumes 8 mA. Standby mode supply current is typically less than 10 µA. The AT27C020 is available in a choice of industry-standard JEDEC-approved one-time programmable OTP plastic PDIP, PLCC and TSOP packages. All devices feature twoline control CE, OE to give designers the flexibility to prevent bus contention. With 256K bytes storage capability, the AT27C020 allows firmware to be stored reliably and to be accessed by the system without the delays of mass storage media. Atmel’s 27C020 have additional features to ensure high quality and efficient production use. The Rapid Programming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 100 µs/byte. The Integrated Product Identification Code electronically identifies the device and manufacturer. This feature is used by industry-standard programming equipment to select the proper programming algorithms and voltages. System Considerations Switching between active and standby conditions via the Chip Enable pin may produce transient voltage excursions. Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device nonconformance. At a minimum, a µF high-frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the VCC and Ground terminals of the device, as close to the device as possible. Additionally, to stabilize the supply-voltage level on printed circuit boards with large EPROM arrays, a µF bulk electrolytic capacitor should be utilized, again connected between the VCC and Ground terminals. This capacitor should be positioned as close as possible to the point where the power supply is connected to the array. Block Diagram AT27C020 AT27C020 Absolute Maximum Ratings* Temperature under Bias -55°C to +125°C Storage Temperature -65°C to +150°C Voltage on Any Pin with Respect to Ground to +7.0V 1 Voltage on A9 with Respect to Ground to +14.0V 1 Ordering Information tACC ICC mA Active Standby Ordering Code AT27C020-55JC AT27C020-55PC AT27C020-55TC AT27C020-55JI AT27C020-55PI AT27C020-55TI AT27C020-70JC AT27C020-70PC AT27C020-70TC AT27C020-70JI AT27C020-70PI AT27C020-70TI AT27C020-90JC AT27C020-90PC AT27C020-90TC AT27C020-90JI AT27C020-90PI AT27C020-90TI AT27C020-90JA AT27C020-90PA AT27C020-12JC AT27C020-12PC AT27C020-12TC AT27C020-12JI AT27C020-12PI AT27C020-12TI AT27C020-12JA AT27C020-12PA AT27C020-15JC AT27C020-15PC AT27C020-15TC AT27C020-15JI AT27C020-15PI AT27C020-15TI AT27C020-15JA AT27C020-15PA 32J 32P6 32T Package Type 32-lead, Plastic J-leaded Chip Carrier PLCC 32-lead, Wide, Plastic Dual Inline Package PDIP 32-lead, Plastic Thin Small Outline Package TSOP AT27C020 Package 32J 32P6 32T 32J 32P6 32T 32J 32P6 32T 32J 32P6 32T 32J 32P6 32T 32J 32P6 32T 32J 32P6 32J 32P6 32T 32J 32P6 32T 32J 32P6 32J 32P6 32T 32J 32P6 32T 32J 32P6 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 Automotive -40°C to 125°C Commercial 0°C to 70°C Industrial -40°C to 85°C Automotive -40°C to 125°C

PDF Datasheet Preview

• Fast Read Access Time 55 ns
• Low-power CMOS Operation
100 µA Max. Standby 25 mA Max. Active at 5 MHz
• JEDEC Standard Packages 32-lead 600-mil PDIP 32-lead PLCC 32-lead TSOP
• 5V ±=10% Supply
• High-reliability CMOS Technology 2,000V ESD Protection 200 mA Latch-up Immunity
• Rapid Programming Algorithm 100 µs/Byte Typical
• CMOS- and TTL-compatible Inputs and Outputs
• Integrated Product Identification Code
• Commercial, Industrial and Automotive Temperature Ranges

The AT27C020 is a low-power, high performance, 2,097,152-bit, one-time program-
mable read-only memory OTP EPROM organized as 256K by 8 bits. It requires only
one 5V power supply in normal read mode operation. Any byte can be accessed
in less than 55 ns, eliminating the need for speed-reducing WAIT states on high-
performance microprocessor systems.
continued

Pin Configurations

Pin Name A0 - A17 O0 - O7 CE OE PGM

Function Addresses Outputs Chip Enable Output Enable Program Strobe

PLCC Top View
4 A12 3 A15 2 A16 1 VPP 32 VCC 31 PGM 30 A17

A7 5 A6 6 A5 7 A4 8 A3 9 A2 10 A1 11 A0 12 O0 13
29 A14 28 A13 27 A8 26 A9 25 A11 24 OE 23 A10 22 CE 21 07
2-megabit 256K x 8 OTP EPROM

AT27C020
01 14 02 15 GND 16 03 17 04 18 05 19 06 20

PDIP Top View

VPP 1 A16 2 A15 3 A12 4

A7 5 A6 6 A5 7 A4 8 A3 9 A2 10 A1 11 A0 12 O0 13 O1 14 O2 15 GND 16
32 VCC 31 PGM 30 A17 29 A14 28 A13 27 A8 26 A9 25 A11 24 OE 23 A10 22 CE 21 07 20 06 19 05 18 04 17 03

A11 1 A9 2 A8 3

A13 4 A14 5 A17 6 PGM 7 VCC 8 VPP 9 A16 10 A15 11 A12 12

A7 13 A6 14 A5 15 A4 16

TSOP Top View Type 1
32 OE 31 A10 30 CE 29 07 28 06 27 05 26 04 25 03 24 GND 23 02 22 01 21 O0 20 A0 19 A1 18 A2 17 A3

In read mode, the AT27C020 typically consumes 8 mA. Standby mode supply current is typically less than 10 µA.

The AT27C020 is available in a choice of industry-standard JEDEC-approved one-time programmable OTP plastic PDIP, PLCC and TSOP packages. All devices feature twoline control CE, OE to give designers the flexibility to prevent bus contention.

With 256K bytes storage capability, the AT27C020 allows firmware to be stored reliably and to be accessed by the system without the delays of mass storage media.

Atmel’s 27C020 have additional features to ensure high quality and efficient production use. The Rapid Programming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 100 µs/byte. The Integrated Product Identification Code electronically identifies the device and manufacturer. This feature is used by industry-standard programming equipment to select the proper programming algorithms and voltages.

System Considerations

Switching between active and standby conditions via the Chip Enable pin may produce transient voltage excursions. Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device nonconformance. At a minimum, a µF high-frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the VCC and Ground terminals of the device, as close to the device as possible. Additionally, to stabilize the supply-voltage level on printed circuit boards with large EPROM arrays, a µF bulk electrolytic capacitor should be utilized, again connected between the VCC and Ground terminals. This capacitor should be positioned as close as possible to the point where the power supply is connected to the array.

Block Diagram

AT27C020

AT27C020

Absolute Maximum Ratings*

Temperature under Bias -55°C to +125°C

Storage Temperature -65°C to +150°C

Voltage on Any Pin with Respect to Ground to +7.0V 1

Voltage on A9 with Respect to Ground to +14.0V 1
Ordering Information
tACC

ICC mA

Active

Standby
Ordering Code

AT27C020-55JC AT27C020-55PC AT27C020-55TC

AT27C020-55JI AT27C020-55PI AT27C020-55TI

AT27C020-70JC AT27C020-70PC AT27C020-70TC

AT27C020-70JI AT27C020-70PI AT27C020-70TI

AT27C020-90JC AT27C020-90PC AT27C020-90TC

AT27C020-90JI AT27C020-90PI AT27C020-90TI

AT27C020-90JA AT27C020-90PA

AT27C020-12JC AT27C020-12PC AT27C020-12TC

AT27C020-12JI AT27C020-12PI AT27C020-12TI

AT27C020-12JA AT27C020-12PA

AT27C020-15JC AT27C020-15PC AT27C020-15TC

AT27C020-15JI AT27C020-15PI AT27C020-15TI

AT27C020-15JA AT27C020-15PA
32J 32P6 32T

Package Type 32-lead, Plastic J-leaded Chip Carrier PLCC 32-lead, Wide, Plastic Dual Inline Package PDIP 32-lead, Plastic Thin Small Outline Package TSOP

AT27C020

Package
32J 32P6 32T
32J 32P6 32T
32J 32P6 32T
32J 32P6 32T
32J 32P6 32T
32J 32P6 32T
32J 32P6
32J 32P6 32T
32J 32P6 32T
32J 32P6
32J 32P6 32T
32J 32P6 32T
32J 32P6

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

Automotive -40°C to 125°C

Commercial 0°C to 70°C

Industrial -40°C to 85°C

Automotive -40°C to 125°C

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Datasheet ID: AT27C020-70PI 518934