AMD Advanced Micro Devices AM27C040-200PC, AM27C040-200JI, AM27C040-200JC, AM27C040-200DIB, AM27C040-200DI Datasheet

FINAL

Am27C040

4 Megabit (512 K x 8-Bit) CMOS EPROM

DISTINCTIVE CHARACTERISTICS

■ Fast access time

— Available in speed options as fast as 90 ns

■ Low power consumption

— <10 µA typical CMOS standby current

■ JEDEC-approved pinout

— Plug-in upgrade for 1 Mbit and 2 Mbit EPROMs
— Easy upgrade from 28-pin JEDEC EPROMs

GENERAL DESCRIPTION

The Am27C040 is a 4 Mbit ultraviolet erasable pro­grammable read-only memory. It is organized as 512K
bytes, operates from a single +5 V supply, has a static
standby mode, and features fast single address loca­tion programming. The device is available in windowed
ceramic DIP packages and plastic one-time program­mable (OTP) packages.

Data can be typically accessed in less than 90 ns, al­lowing high-p erformance m icroproces sors to ope rate
without any WAIT states. The device offers separate
Output Enable (OE#) and Chip Enable (CE#) controls,

■ Single +5 V power supply

■ ±10% power supply tolerance standard

■ 100% Flashrite™ programming

— Typical programming time of 1 minute

■ Latch-up protected to 100 mA from –1 V to

+ 1 V

V

CC

■ High noise immunity

■ Compact 32-pin DIP, PDIP, PLCC packages

thus eliminating bus contention in a mul tiple bus micro­processor system.

AMD’s CMOS process technology provides high
speed, low power, and high noise immunity. Typical
power consumption is only 100 mW in active mode,
and 50 µW in standby mode.

All signals are TTL levels, including programming sig­nals. Bit locations may be programmed singly, in
blocks, or at random. The device supports AMD’s
Flashrite programming algorithm (100 µs pulses) re­sulting in typical programming time of 1 minute.

BLOCK DIAGRAM

OE#

CE#/PGM#

A0–A18
Address

Inputs

V

CC

V

SS

V

PP

Output Enable

Chip Enable

and

Prog Logic

Y

Decoder

X

Decoder

Data Outputs

DQ0–DQ7

Output
Buffers

Y

Gating

4,194,304-Bit

Cell Matrix

Publication# 14971 Rev: G Amendment/0
Issue Date: May 1998

14971G-1

FINAL

PRODUCT SELECTOR GUIDE

Family Part Number Am27C040

Speed Options (V

= 5.0 V ± 10%) -90 -120 -150 -200

CC

Max Access Time (ns) 90 120 150 200
CE# (E#) Access (ns) 90 120 150 200
OE# (G#) Access (ns) 40 50 65 75

CONNECTION DIAGRAMS
Top View

DIP PLCC

32

V

PP

A16
A15
A12

A7
A6
A5
A4
A3
A2
A1
A0

DQ0
DQ1

DQ2

V

SS

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

V

CC

31

A18

30

A17

29

A14

28

A13

27

A8

26

A9

25

A11

24

OE# (G#)

23

A10

22

CE# (E#)/PGM# (P#)

21

DQ7
DQ6

20
19

DQ5

18

DQ4

17

DQ3

A7
A6
A5
A4
A3
A2
A1
A0

DQ0

5
6
7
8
9
10
11
12
13

A12

DQ1

A15

DQ2

A16

VPPVCCA18

1

17 18 19 20161514

SS

V

DQ3

A17

31 3023432

DQ4

DQ5

DQ6

29

A14

28

A13

27

A8

26

A9

25

A11

24

OE# (G#)

23

A10

22

CE# (E#)/PGM# (P#)

21

DQ7

14971G-3

14971G-2

Notes:

1. JEDEC nomenclature is in parenthesis.

2. The 32-pin DIP to 32-pin PLCC configuration varies from the JEDEC 28-pin DIP to 32-pin PLCC configuration.

PIN DESIGNATIONS

LOGIC SYMBOL

A0–A18 = Address Inputs
CE# (E#)/PGM# (P#)= Chip Enable/Program Enable Input
DQ0–DQ7 = Data Inputs/Outputs
OE# (G#) = Output Enable Input
V

CC

V

PP

V

SS

=VCC Supply Voltage
= Program Voltage Input
= GroundLogic Symbol

19

A0–A18

DQ0–DQ7

CE# (E#)/PGM#(P#)

OE# (G#)

2 Am27C040

8

14971E-4

FINAL

ORDERING INFORMATION
UV EPROM Products

AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed
by a combination of:

AM27C040 -90 D C

OPTIONAL PROCESSING

Blank = Standard Processing
B = Burn-In

TEMPERATURE RANGE

C = Commercial (0
I=Industrial (–40

E = Extended (–55°C to +125°C)

PACKAGE TYPE

D = 32-Pin Ceramic DIP (CDV032)

SPEED OPTION

See Product Selector Guide and
Valid Combinations

°C to +70°C)

°C to +85°C)

AM27C040-90
AM27C040-120
AM27C040-150
AM27C040-200

DEVICE NUMBER/DESCRIPTION

Am27C040
4 Megabit (512K x 8-Bit) CMOS UV EPROM

Valid Combinations

DC, DCB, DI, DIB, DE, DEB

Valid Combinations

Valid Combinations list configurations planned to be sup­ported in volume for this device. Consult the local AMD sales
office to confirm availability of specific valid combinations and
to check on newly released combinations.

Am27C040 3

FINAL

ORDERING INFORMATION
OTP EPROM Products

AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed
by a combination of:

AM27C040 -90 J C

OPTIONAL PROCESSING

Blank = Standard Processing

TEMPERATURE RANGE

C = Commercial (0
I=Industrial (–40

E = Extended (–55

PACKAGE TYPE

P = 32-Pin Plastic DIP (PD 032)
J = 32-Pin Rectangular Plastic Leaded Chip

Carrier (PL 032)

SPEED OPTION

See Product Selector Guide and
Valid Combinations

°C to +70°C)

°C to +85°C)

°C to 125°C)

AM27C040-90
AM27C040-120
AM27C040-150
AM27C040-200

Valid Combinations

PC, PI, JC, JI

DEVICE NUMBER/DES CR IP TIO N

Am27C040
4 Megabit (512K x 8-Bit) CMOS OTP EPROM

Valid Combinations

Valid Combinations list configurations planned to be sup­ported in volume for this device. Consult the local AMD sales
office to confirm availability of specific valid combinations and
to check on newly released combinations.

4 Am27C040