AMD Advanced Micro Devices AM27X2048-150JI, AM27X2048-150JC, AM27X2048-120PI, AM27X2048-120PC, AM27X2048-120JI Datasheet
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FINAL
Am27X2048
2 Megabit (128 K x 16-Bit) CMOS ExpressROM Device
DISTINCTIVE CHARACTERISTICS
■ As an OTP EPROM alternative:
— Factory optimized programming
— Fully tested and guaranteed
■ As a Mask ROM alternative:
— Shorter leadtime
— Lower volume per code
■ Fast access time
— 70 ns
■ Single +5 V power supply
■ Compatible wit h JEDEC-approved EPROM
pinout
■ ±10% power supply tolerance
■ High noise immunity
■ Low power dissipation
— 100 µA maximum CMOS standby current
■ Av ailable in Plastic Dual-In-line Pac kage (PDIP)
and Plastic Leaded Chip Carrier (PLCC)
■ Latch-up protected to 100 mA from –1 V to
+ 1 V
V
CC
■ Versatile features for simpl e int erfacing
— Both CMOS and TTL input/output compatibility
— Two line control functions
GENERAL DESCRIPTION
The Am27X2048 is a factory programmed and tested
OTP EPROM. It is progra mmed after pac kaging prior to
final test. Every device is rigorously tested under AC
and DC operating conditions to your stable code. It is
organized as 128 Kwords by 16 bits per word and is
available in plastic dual in- line packages (PDIP), as
well as plastic leaded chip carrier (PLCC) packages.
ExpressROM devices provide a board-ready memory
solution for medium to high volume codes with short
leadtimes. This offers manufacturers a cost-effective
and flexible alternativ e to O TP EPROMs and mask programmed ROMs.
BLOCK DIAGRAM
V
CC
V
SS
OE#
CE#
A0–A16
Address
Inputs
Output Enable
Chip Enable
and
Prog Logic
Y
Decoder
X
Decoder
Data can be accessed as fast as 70 ns, allowing
high-performance microprocessors to operate with reduced 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 125 mW in active mode,
and 100 µW in standby mode.
Data Outputs DQ0–DQ15
Output
Buffers
Y
Gating
2,097,152
Bit Cell
Matrix
15653D-1
Publication# 15653 Rev: D Amendment/0
Issue Date: May 1998
PRODUCT SELECTOR GUIDE
Family Part Number Am27X2048
= 5.0 V ± 5% -255
V
Speed Options
CC
= 5.0 V ± 10% -70 -90 -120 -150 -200
V
CC
Max Access Time (ns) 70 90 120 150 200 250
CE# (E#) Access (ns) 70 90 120 150 200 250
OE# (G#) Access (ns) 40 40 50 65 75 75
CONNECTION DIAGRAMS
DIP PLCC
V
V
PP
CE# (E#)
DQ15
DQ14
DQ13
DQ12
DQ11
DQ10
DQ9
DQ8
V
SS
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
OE# (G#)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
CC
PGM# (P#)
A16
A15
A14
A13
A12
A11
A10
A9
V
SS
A8
A7
A6
A5
A4
A3
A2
A1
A0
15653D-2
DQ12
DQ11
DQ10
DQ9
DQ8
V
NC
DQ7
DQ6
DQ5
DQ4
DQ13
DQ14
DQ15
CE (E)
7
8
9
10
11
12
SS
13
14
15
16
17
DQ3
DQ2
DQ1
DQ0
VPPDU (Note 2)
VCCPGM# (P#)
A16
A15
A14
1 444342543264140
39
38
37
36
35
34
33
32
31
30
29
23 24 25 2619 20 21 2218 27 28
A0A1A2A3A4
OE# (G#)
DU (Note 2)
15653D-3
A13
A12
A11
A10
A9
V
SS
NC
A8
A7
A6
A5
Notes:
1. JEDEC nomenclature is in parenthesis.
2. Don’t use (DU) for PLCC.
PIN DESIGNATIONS
LOGIC SYMBOL
A0–A16 = Address Inputs
CE# (E#) = Chip Enable Input
DQ0–DQ15 = Data Input/Outputs
OE# (G#) = Output Enable Input
PGM# (P#) = Program Enable Input
V
CC
V
PP
V
SS
=VCC Supply Voltage
= Program Voltage Input
= Ground
NC = No Internal Connection
2 Am27X2048
17
A0–A16
CE# (E#)
OE# (G#)
16
DQ0–DQ15
15653D-4
ORDERING INFORMATION
Standard Pr od ucts
AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed
by a combination of the following:
AM27X2048
-70 J C
DEVICE NUMBER/DESCRIPTION
Am27X2048
2 Megabit (128 K x 16-Bit) CMOS ExpressROM Device
XXXXX
CODE DESIGNATION
Assigned by AMD
TEMPERATURE RANGE
C = Commercial (0°C to +70
I=Industrial (–40
PACKAGE TYPE
P = 40-Pin Plastic Dual In-Line Package (PD 040)
J = 44-Pin Plastic Leaded Chip Carrier (PL 044)
SPEED OPTION
See Product Selector Guide and Valid Combinations
°C to +85°C)
°C)
AM27X2048-70
AM27X2048-90
AM27X2048-120
AM27X2048-150
AM27X2048-200
AM27X2048-255
= 5.0 V ± 5%
V
CC
Valid Combinations
PC, JC, PI, JI
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.
Am27X2048 3
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