AMD Advanced Micro Devices AM27C512-90PI, AM27C512-90PC, AM27C512-120PC, AM27C512-120JI, AM27C512-120JC Datasheet
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FINAL
Am27C512
512 Kilobit (64 K x 8-Bit) CMOS EPROM
DISTINCTIVE CHARACTERISTICS
■Fast access time
—Speed options as fast as 55 ns
■Low power consumption
—20 µA typical CMOS standby current
■JEDEC-approved pinout
■Single +5 V power supply
■±10% power supply tolerance standard
■100% Flashrite™ programming
—Typical programming time of 8 seconds
■Latch-up protected to 100 mA from –1 V to VCC + 1 V
■High noise immunity
■Versatile features for simple interfacing
—Both CMOS and TTL input/output compatibility
—Two line control functions
■Standard 28-pin DIP, PDIP, and 32-pin PLCC packages
GENERAL DESCRIPTION
The Am27C512 is a 512-Kbit, ultraviolet erasable programmable read-only memory. It is organized as 64K words by 8 bits per word, operates from a single +5 V supply, has a static standby mode, and features fast single address location programming. Products are available in windowed ceramic DIP packages, as well as plastic one time programmable (OTP) PDIP and PLCC packages.
Data can be typically accessed in less than 55 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 80 mW in active mode, and 100 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 a typical programming time of 8 seconds.
BLOCK DIAGRAM
VCC
VSS
OE#/VPP 
CE# 
A0–A15
Address 
Inputs
Output Enable
Chip Enable
and
Prog Logic
Y
Decoder
X
Decoder
Data Outputs
DQ0–DQ7
Output
Buffers
Y
Gating
524,288 Bit Cell Matrix
08140I-1
Publication# 08140 Rev: I Amendment/0
Issue Date: May 1998
PRODUCT SELECTOR GUIDE
Family Part Number |
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Am27C512 |
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Speed Options |
VCC = 5.0 V ± 5% |
-55 |
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-255 |
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VCC = 5.0 V ± 10% |
-55 |
-70 |
-90 |
-120 |
-150 |
-200 |
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Max Access Time (ns) |
55 |
70 |
90 |
120 |
150 |
200 |
250 |
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CE# (E#) Access (ns) |
55 |
70 |
90 |
120 |
150 |
200 |
250 |
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OE# (G#) Access (ns) |
35 |
40 |
40 |
50 |
50 |
50 |
50 |
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CONNECTION DIAGRAMS
Top View
DIP
A15 |
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28 |
VCC |
A12 |
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2 |
27 |
A14 |
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A7 |
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3 |
26 |
A13 |
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A6 |
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A8 |
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25 |
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A5 |
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A9 |
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5 |
24 |
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A4 |
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A11 |
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6 |
23 |
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A3 |
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OE# (G#)/VPP |
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7 |
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A2 |
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A10 |
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A1 |
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CE# (E#) |
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9 |
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A0 |
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DQ7 |
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10 |
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DQ0 |
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DQ6 |
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11 |
18 |
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DQ1 |
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DQ5 |
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12 |
17 |
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DQ2 |
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DQ4 |
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16 |
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VSS |
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DQ3 |
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14 |
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08140I-2
Notes:
1.JEDEC nomenclature is in parenthesis.
2.Don’t use (DU) for PLCC.
PLCC
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A7 |
A12 |
A15 |
DU |
V |
A14 |
A13 |
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CC |
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A6 |
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29 |
A8 |
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A5 |
6 |
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28 |
A9 |
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A4 |
7 |
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27 |
A11 |
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A3 |
8 |
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26 |
NC |
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A2 |
9 |
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25 |
OE# (G#)/VPP |
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A1 |
10 |
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A10 |
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A0 |
11 |
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23 |
CE# (E#) |
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NC |
12 |
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22 |
DQ7 |
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DQ0 |
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DQ6 |
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DQ1 |
DQ2 |
SS |
DU |
DQ3 |
DQ4 |
DQ5 |
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08140I-3 |
PIN DESIGNATIONS |
LOGIC SYMBOL |
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A0–A15 |
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Address Inputs |
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CE# (E#) |
= |
Chip Enable Input |
16 |
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DQ0–DQ7 |
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Data Input/Outputs |
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A0–A15 |
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OE# (G#)/VPP = |
Output Enable Input |
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DQ0–DQ7 |
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Program Voltage Input |
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CE# (E#) |
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VCC |
= |
VCC Supply Voltage |
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VSS |
= |
Ground |
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OE# (G#)/VPP |
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NC |
= |
No Internal Connection |
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08140I-4
2 |
Am27C512 |
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 the following:
AM27C512 |
-55 |
D |
C |
B |
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 = 28-Pin Ceramic DIP (CDV028)
SPEED OPTION
See Product Selector Guide and Valid Combinations
DEVICE NUMBER/DESCRIPTION
Am27C512
512 Kilobit (65 K x 8-Bit) CMOS UV EPROM
Valid Combinations
AM27C512-55 |
DC |
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VCC = 5.0 V ± 5% |
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AM27C512-55 |
DC, DCB |
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VCC = 5.0 V ± 10% |
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AM27C512-70 |
DC, DCB, DI, DIB |
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AM27C512-90 |
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AM27C512-120 |
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AM27C512-150 |
DC, DCB, DI, DIB, DE, DEB |
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AM27C512-200 |
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AM27C512-255 |
DC, DCB, DI, DIB |
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VCC = 5.0 V ± 5% |
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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.
Am27C512 |
3 |
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 the following:
AM27C512 |
-70 |
P |
C |
OPTIONAL PROCESSING
Blank = Standard Processing
TEMPERATURE RANGE
C = Commercial (0°C to +70°C)
I = Industrial (–40°C to +85°C)
PACKAGE TYPE
P = 28-Pin Plastic DIP (PD 028)
J = 32-Pin Plastic Leaded Chip Carrier (PL 032)
SPEED OPTION
See Product Selector Guide and Valid Combinations
DEVICE NUMBER/DESCRIPTION
Am27C512
512 Kilobit (65 K x 8-Bit) CMOS OTP EPROM
Valid Combinations
AM27C512-55 |
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VCC = 5.0 V ± 5% |
JC, PC |
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AM27C512-55 |
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VCC = 5.0 V ± 5% |
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AM27C512-70 |
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AM27C512-90 |
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AM27C512-120 |
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JC, PC, JI, PI |
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AM27C512-150 |
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AM27C512-200 |
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AM27C512-255 |
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VCC = 5.0 V ± 5% |
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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 |
Am27C512 |
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