HM6288 PDF даташит
Спецификация HM6288 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «16384-word x 4-bit High Speed CMOS Static RAM». |
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Детали детали
Номер произв | HM6288 |
Описание | 16384-word x 4-bit High Speed CMOS Static RAM |
Производители | Hitachi Semiconductor |
логотип |
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HM6288 Series
16384-word × 4-bit High Speed CMOS Static RAM
Description
The Hitachi HM6288 is a high speed 64k static RAM organized as 16-kword × 4-bit. It realizes high speed
access time (25/35 ns) and low power consumption, using CMOS process technology. It is most
advantageous for the field where high speed and high density memory is required, such as cache memory for
mainframes or 32-bit MPUs. The HM6288, packaged in a 300-mil plastic DIP and SOJ, is available for high
density mounting. A low power version retains data with battery backup.
Features
• Single 5 V supply arid high density plastic package
• High speed: fast access time 25/35 ns (max)
• Low power dissipation:
Active mode 300 mW (typ)
Standby mode 100 µW (typ)
• Completely static memory
No clock or timing strobe required
• Equal access and cycle times.
• Directly TTL compatible all inputs and outputs
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HM6288 Series
Ordering lnformation
Type No.
HM6288P-25
HM6288P-35
HM6288LP-25
HM6288LP-35
HM6288JP25
HM6288JP-35
HM6288LJP-25
HM6288LJP-35
Access Time
25 ns
35 ns
25 ns
35 ns
25 ns
35 ns
25 ns
35 ns
Package
300-mil, 22-pin plastic DIP (DP-22NB)
300-mil, 24-pin SOJ (CP-24D)
Pin Arrangement
HM6288P Series
A0 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
CS 10
VSS 11
22 VCC
21 A13
20 A12
19 A11
18 A10
17 A9
16 I/O1
15 I/O2
14 I/O3
13 I/O4
12 WE
(Top view)
HM6288JP Series
A0 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
CS 10
NC 11
VSS 12
24 VCC
23 A13
22 A12
21 A11
20 A10
19 A9
18 NC
17 I/O1
16 I/O2
15 I/O3
14 I/O4
13 WE
(Top view)
Pin Description
Pin Name
A0–A13
I/O1–I/O4
CS
WE
VCC
VSS
Function
Address
lnput/output
Chip select
Write enable
Power supply
Ground
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Block Diagram
A0
A1
A2
A3
A4
A5
A6
I/O1
I/O2
I/O3
I/O4
CS
WE
Row
decoder
Memory array
128 rows
512 columns
Input
data
control
Column I/O
Column decoder
A7 A13
Truth Table
CS WE
H×
LH
LL
Note: ×: Don’t care.
Mode
Standby
Read
Write
VCC Current
ISB, ISB1
I CC
I CC
I/O Pin
High-Z
Dout
Din
HM6288 Series
VCC
VSS
Ref. Cycle
—
Read cycle 1, 2
Write cycle 1, 2
Absolute Maximum Ratings
Parameter
Symbol
Voltage on any pin relative to VSS
Power dissipation
Operating temperature
VT
PT
Topr
Storage temperature
Tstg
Temperature under bias
Tbias
Note: VT min.: –2.0 V for pulse width ≤ 10 ns
Value
–0.5* to +7.0
1.0
0 to +70
–55 to +125
–10 to +85
Unit
V
W
°C
°C
°C
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