TMS27C040-15JL datasheet(1/12 Pages) TI1

Part #	TMS27C040-15JL

Description	PROGRAMMABLE READ-ONLY MEMORY

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TMS27C040 524288 BY 8BIT UV ERASABLE

TMS27PC040 524288 BY 8BIT

PROGRAMMABLE READONLY MEMORY

SMLS040F − NOVEMBER 1990 − REVISED SEPTEMBER 1997

1

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

D Organization . . . 524288 by 8 Bits

D Single 5-V Power Supply

D Industry Standard 32-Pin Dual In-Line

Package and 32-Lead Plastic Leaded Chip

Carrier

D All Inputs/Outputs Fully TTL Compatible

D Static Operation (No Clocks, No Refresh)

D Max Access/Min Cycle Time

VCC ± 10%

’27C / PC040-10

100 ns

’27C / PC040-12

120 ns

’27C / PC040-15

150 ns

D 8-Bit Output For Use in

Microprocessor-Based Systems

D Power-Saving CMOS Technology

D 3-State Output Buffers

D 400-mV Assured DC Noise Immunity With

Standard TTL Loads

D Latchup Immunity of 250 mA on All Input

and Output Pins

D No Pullup Resistors Required

D Low Power Dissipation (VCC = 5.5 V)

− Active . . . 275 mW Worst Case

− Standby . . . 0.55 mW Worst Cas E

(CMOS-Input Levels)

D Temperature Range Options

description

The TMS27C040 devices are 524 288 by 8-bit

(4 194 304-bit), ultraviolet (UV) light erasable,

electrically programmable read-only memories

(EPROMs).

The TMS27PC040 devices are 524 288 by 8-bit

(4 194 304-bit), one-time programmable (OTP)

electrically programmable read-only memories

(PROMs).

These devices are fabricated using CMOS

technology for high speed and simple interface

with MOS and bipolar circuits. All inputs (including

program data inputs) can be driven by the Series

74 TTL circuits. Each output can drive one Series

74 TTL circuit without external resistors.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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TMS27C040

J PACKAGE

( TOP VIEW )

PIN NOMENCLATURE

A0 − A18

Address Inputs

DQ0 − DQ7

Inputs (programming) / Outputs

E

Chip Enable

G

Output Enable

GND

Ground

VCC

5-V Supply

VPP

13-V Power Supply†

† Only in program mode.

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VPP

A16

A15

A12

A7

A6

A5

A4

A3

A2

A1

A0

DQ0

DQ1

DQ2

GND

VCC

A18

A17

A14

A13

A8

A9

A11

G

A10

E

DQ7

DQ6

DQ5

DQ4

DQ3

A14

A13

A8

A9

A11

G

A10

E

DQ7

A7

A6

A5

A4

A3

A2

A1

A0

DQ0

TMS27PC040

FM PACKAGE

( TOP VIEW )

Copyright

 1997, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

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