AT27C512R View Datasheet(PDF) - Atmel Corporation

Part Name

Description

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AT27C512R

512K (64K x 8) OTP EPROM

Atmel Corporation 

6. Operating Modes

Mode/Pin

CE

OE/VPP

Ai

Outputs

Read

VIL

VIL

Ai

DOUT

Output Disable

VIL

VIH

X(1)

High Z

Standby

VIH

X(1)

X

High Z

Rapid Program(2)

VIL

VPP

Ai

DIN

PGM Inhibit

VIH

VPP

X(1)

High Z

Product Identification(4)

VIL

VIL

Notes: 1. X can be VIL or VIH.

2. Refer to Programming Characteristics.

A9 =VH(3)

A0 = VIH or VIL

A1 - A15 = VIL

Identification Code

3. VH = 12.0 ± 0.5V.

4. Two identifier bytes may be selected. All Ai inputs are held low (VIL), except A9 which is set to VH and A0 which is toggled

low (VIL) to select the Manufacturer’s Identification byte and high (VIH) to select the Device Code byte.

7. DC and AC Operating Conditions for Read Operation

Operating Temp.(Case)

VCC Supply

Ind.

Auto.

-45

-40°C - 85°C

AT27C512R

5V ± 10%

-70

-40°C - 85°C

-40° C - 125° C

5V ± 10%

8. DC and Operating Characteristics for Read Operation

Symbol Parameter

Condition

Min

Max

Ind.

±1

ILI

Input Load Current

VIN = 0V to VCC

Auto.

±5

Ind.

±5

ILO

Output Leakage Current VOUT = 0V to VCC

Auto.

±10

ISB

VCC(1) Standby Current

ISB1 (CMOS), CE = VCC ± 0.3V

ISB2 (TTL), CE = 2.0 to VCC + 0.5V

ICC

VCC Active Current

f = 5 MHz, IOUT = 0 mA, CE = VIL

VIL

Input Low Voltage

VIH

Input High Voltage

VOL

Output Low Voltage

IOL = 2.1 mA

VOH

Output High Voltage

IOH = -400 µA

100

1

20

-0.6

0.8

2.0

VCC + 0.5

0.4

2.4

Note: 1. VCC must be applied simultaneously with or before OE/VPP, and removed simultaneously with or after OE/VPP..

Units

µA

µA

µA

µA

µA

mA

mA

V

V

V

V

4 AT27C512R

0015O–EPROM–12/07

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