HMS1M32M8A 4Mbyte Datasheet

HMS1M32M8A Datasheet PDF, Equivalent


Part Number

HMS1M32M8A

Description

SRAM MODULE 4Mbyte

Manufacture

Hanbit Electronics

Total Page 9 Pages
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Download HMS1M32M8A Datasheet PDF


HMS1M32M8A
HANBit
HMS1M32M8A/Z8A
HAN
BI T
SRAM MODULE 4Mbyte(1M x 32-Bit) , 64-Pin SIMM Design
Part No. HMS1M32M8A, HMS1M32Z8A
GENERAL DESCRIPTION
The HMS1M32M8A is a high-speed static random access memory (SRAM) module containing 1,048,576 words
organized in a x32-bit configuration. The module consists of eight 1M x 4 SRAMs mounted on a 64-pin, double-
sided, FR4-printed circuit board.
Four chip enable inputs, (/CE1, /CE2, /CE3 and /CE4) are used to enable the module’s 4 bytes independently.
Output enable (/OE) and write enable(/WE) can set the memory input and output.
Data is written into the SRAM memory when write enable (/WE) and chip enable (/CE) inputs are both LOW.
Reading is accomplished when /WE remains HIGH and /CE and output enable (/OE) are LOW.
For reliability, this SRAM module is designed as multiple power and ground pin. All module components may be
powered from a single +5V DC power supply and all inputs and outputs are fully TTL-compatible.
FEATURES
Š Access times : 10, 12, 15, 17 and 20ns
Š High-density 4MByte design
Š High-reliability, high-speed design
Š Single + 5V ±0.5V power supply
Š Easy memory expansion with /CE and /OE functions
Š All inputs and outputs are TTL-compatible
Š Industry-standard pinout
www.DataSheet4U.com
Š Part identification
- HMS1M32M8A : 64Pin SIMM Design
- HMS1M32Z8A : 64Pin ZIP Design
Pin-Compatible with the HMS1M32M8A
OPTIONS
Š Timing
10ns access
12ns access
15ns access
17ns access
20ns access
Š Packages
64-pin SIMM
64-pin ZIP
MARKING
-10
-12
-15
-17
-20
M
Z
1
PIN ASSIGNMENT
A18 2
DQ0 4
DQ1 6
DQ2 8
DQ3 10
Vcc 12
A7 14
A8 16
A9 18
DQ4 20
DQ5 22
DQ6 24
DQ7 26
/WE 28
A14 30
/CE1 32
/CE3 34
A16 36
Vss 38
DQ16 40
DQ17 42
DQ18 44
DQ19 46
A10 48
A11 50
A12 52
A13 54
DQ20 56
DQ21 58
DQ22 60
DQ23 62
Vss 64
ZIP
TOP VIEW
1 Vss
3 A19
5 DQ8
7 DQ9
9 DQ10
11 DQ11
13 A0
15 A1
17 A2
19 DQ12
21 DQ13
23 DQ14
25 DQ15
27 Vss
29 A15
31 /CE2
33 /CE4
35 A17
37 /OE
39 DQ24
41 DQ25
43 DQ26
45 DQ27
47 A3
49 A4
51 A5
53 Vcc
55 A6
57 DQ28
59 DQ29
61 DQ30
63 DQ31
HANBit Electronics Co.,Ltd.

HMS1M32M8A
HANBit
FUNCTIONAL BLOCK DIAGRAM
DQ0 - DQ31
A0 - A19
32
20
/CE1
/CE2
/CE3
www.DataSheet4U/W.coEm
/OE
/CE4
A0-19
DQ 0-3
/WE
/OE U1
/CE
A0-19
DQ 8-11
/WE
/OE U2
/CE
A0-19
/WE DQ16-19
/OE
U3
/CE
A0-19
DQ24-27
/WE
/OE U4
/CE
HMS1M32M8A/Z8A
A0-19
DQ 4-7
/WE
/OE U5
/CE
A0-19
DQ12-15
/WE
/OE U6
/CE
A0-19
/WE DQ20-23
/OE
U7
/CE
A0-19
DQ28-31
/WE
/OE U8
/CE
TRUTH TABLE
MODE
STANDBY
NOT SELECTED
READ
WRITE
/OE /CE /WE OUTPUT
X H X HIGH-Z
H L H HIGH-Z
L LH
X LL
DOUT
DIN
POWER
STANDBY
ACTIVE
ACTIVE
ACTIVE
2 HANBit Electronics Co.,Ltd.


Features HANBit HAN BIT HMS1M32M8A/Z8A SRAM MOD ULE 4Mbyte(1M x 32-Bit) , 64-Pin SIMM D esign Part No. HMS1M32M8A, HMS1M32Z8A GENERAL DESCRIPTION The HMS1M32M8A is a high-speed static random access memor y (SRAM) module containing 1,048,576 wo rds organized in a x32-bit configuratio n. The module consists of eight 1M x 4 SRAMs mounted on a 64-pin, doublesided, FR4-printed circuit board. Four chip e nable inputs, (/CE1, /CE2, /CE3 and /CE 4) are used to enable the module’s 4 bytes independently. Output enable (/OE ) and write enable(/WE) can set the mem ory input and output. Data is written i nto the SRAM memory when write enable ( /WE) and chip enable (/CE) inputs are b oth LOW. Reading is accomplished when / WE remains HIGH and /CE and output enab le (/OE) are LOW. For reliability, this SRAM module is designed as multiple po wer and ground pin. All module componen ts may be powered from a single +5V DC power supply and all inputs and outputs are fully TTL-compatible. FEATURES Š Access times : 10, 12, 15,.
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