AMD Advanced Micro Devices AM27C040-200PC, AM27C040-200JI, AM27C040-200JC, AM27C040-200DIB, AM27C040-200DI Datasheet
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FINAL
Am27C040
4 Megabit (512 K x 8-Bit) CMOS EPROM
DISTINCTIVE CHARACTERISTICS
■ Fast access time |
■ Single +5 V power supply |
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— Available in speed options as fast as 90 ns |
■ ±10% power supply tolerance standard |
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■ Low power consumption |
■ 100% Flashrite™ programming |
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— <10 µA typical CMOS standby current |
— Typical programming time of 1 minute |
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■ JEDEC-approved pinout |
■ Latch-up protected to 100 mA from –1 V to |
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— Plug-in upgrade for 1 Mbit and 2 Mbit EPROMs |
VCC + 1 V |
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— Easy upgrade from 28-pin JEDEC EPROMs |
■ High noise immunity |
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■ Compact 32-pin DIP, PDIP, PLCC packages |
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GENERAL DESCRIPTION |
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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-performance microprocessors to operate without any WAIT states. The device offers separate Output Enable (OE#) and Chip Enable (CE#) controls,
thus eliminating bus contention in a multiple 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
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VCC |
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Data Outputs |
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VSS |
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DQ0–DQ7 |
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VPP |
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OE# |
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Output Enable |
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Chip Enable |
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Output |
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and |
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Buffers |
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CE#/PGM# |
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Prog Logic |
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Y |
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Decoder |
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Gating |
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A0–A18 |
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Address |
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X |
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4,194,304-Bit |
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Inputs |
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Decoder |
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Cell Matrix |
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14971G-1
Publication# 14971 Rev: G Amendment/0
Issue Date: May 1998
F I N A L
PRODUCT SELECTOR GUIDE
Family Part Number |
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Am27C040 |
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Speed Options (VCC = 5.0 V ± 10%) |
-90 |
-120 |
-150 |
-200 |
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Max Access Time (ns) |
90 |
120 |
150 |
200 |
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CE# (E#) Access (ns) |
90 |
120 |
150 |
200 |
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OE# (G#) Access (ns) |
40 |
50 |
65 |
75 |
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CONNECTION DIAGRAMS
Top View
DIP
VPP |
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1 |
32 |
VCC |
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A16 |
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2 |
31 |
A18 |
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A15 |
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3 |
30 |
A17 |
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A12 |
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4 |
29 |
A14 |
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A7 |
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5 |
28 |
A13 |
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A6 |
6 |
27 |
A8 |
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A5 |
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7 |
26 |
A9 |
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A4 |
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8 |
25 |
A11 |
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A3 |
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9 |
24 |
OE# (G#) |
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A2 |
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10 |
23 |
A10 |
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A1 |
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11 |
22 |
CE# (E#)/PGM# (P#) |
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A0 |
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12 |
21 |
DQ7 |
DQ0 |
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DQ6 |
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13 |
20 |
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DQ1 |
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14 |
19 |
DQ5 |
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DQ2 |
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15 |
18 |
DQ4 |
VSS |
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16 |
17 |
DQ3 |
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PLCC |
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A12 |
A15 |
A16 |
PP |
CC |
A17 |
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V |
V A18 |
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4 |
3 |
2 |
1 |
32 31 30 |
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A7 |
5 |
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A14 |
A6 |
6 |
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28 |
A13 |
A5 |
7 |
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27 |
A8 |
A4 |
8 |
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26 |
A9 |
A3 |
9 |
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25 |
A11 |
A2 |
10 |
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24 |
OE# (G#) |
A1 |
11 |
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23 |
A10 |
A0 |
12 |
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CE# (E#)/PGM# (P#) |
DQ0 |
13 |
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21 |
DQ7 |
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14 15 16 17 18 19 20 |
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DQ1 |
DQ2 |
SS |
DQ3 |
DQ4 DQ5 |
DQ6 |
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V |
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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 |
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A0–A18 |
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Address Inputs |
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CE# (E#)/PGM# (P#)= |
Chip Enable/Program Enable Input |
19 |
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DQ0–DQ7 |
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Data Inputs/Outputs |
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A0–A18 |
8 |
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OE# (G#) |
= |
Output Enable Input |
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DQ0–DQ7 |
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VCC |
= |
VCC Supply Voltage |
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CE# (E#)/PGM#(P#) |
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VPP |
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Program Voltage Input |
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OE# (G#) |
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VSS |
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GroundLogic Symbol |
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14971E-4
2 |
Am27C040 |
F I N A L
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°C to +70°C)
I = Industrial (–40°C to +85°C)
E = Extended (–55°C to +125°C)
PACKAGE TYPE
D = 32-Pin Ceramic DIP (CDV032)
SPEED OPTION
See Product Selector Guide and
Valid Combinations
DEVICE NUMBER/DESCRIPTION
Am27C040
4 Megabit (512K x 8-Bit) CMOS UV EPROM
Valid Combinations
Valid Combinations
AM27C040-90
AM27C040-120
DC, DCB, DI, DIB, DE, DEB
AM27C040-150
AM27C040-200
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 |
F I N A L
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°C to +70°C)
I = Industrial (–40°C to +85°C)
E = Extended (–55°C to 125°C)
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
DEVICE NUMBER/DESCRIPTION
Am27C040
4 Megabit (512K x 8-Bit) CMOS OTP EPROM
Valid Combinations
AM27C040-90
AM27C040-120
PC, PI, JC, JI
AM27C040-150
AM27C040-200
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 |
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