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參數(shù)資料
| 型號： | MH16M40AJD-6 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | FAST PAGE MODE ( 16,777,216-WORD BY 40-BIT ) DYNAMIC RAM |
| 中文描述： | 快速頁面模式（16,777,216字40位）動態(tài)隨機(jī)存儲器 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 189K |
| 代理商： | MH16M40AJD-6 |
MITSUBISHI
ELECTRIC
( / 17 )
FAST PAGE MODE ( 16,777,216-WORD BY 40-BIT ) DYNAMIC RAM
MH16M40AJD -6
MITSUBISHI LSIs
31/ Jan./1997
MIT - DS - 0069 -1.1
Proto-2
Preliminary Spec.
Some of contents are subject to change without notice.
DQ8 9
DQ9 10
DQ10 11
DQ11 12
DQ12 13
DQ13 14
Vcc 15
DQ14 16
/CAS0 17
/RAS0 18
DQ15 19
DQ16 20
DQ17 21
/W0 22
NC 23
DQ18 24
DQ19 25
Vss 26
DQ20 27
A0 28
A1 29
A2 30
A3 31
A4 32
A5 33
A6 34
PIN CONFIGURATION ( TOP VIEW )
DESCRIPTION
The MH16M40AJD is a 16M word by 40-bit dynamic
RAM module and consists of 10 industry standard
16M X 4 dynamic RAMs in a TSOP package.
The ICs are mounted on both sides of two small PC
boards (Ceracom) with the flash gold plating and form
a convenient 69-pin WDIP package.
FEATURES
Type name
RAS
(time
CAS
(time
time
access
(time
110
Cycle
Power
(typ.mW)
2500
MH16M40AJD-6
Utilizes industry standard 16M X 4 DRAMs in TSOP package
Low stand-by power dissipation
13mW (Max) ............................ CMOS lnput level
Low operating power dissipation
MH16M40AJD - 6 ........................ 3242 mW (Max)
Fast-page mode , Read-modify-write,RAS-only refresh
CAS before RAS refresh, Hidden refresh capabilities
Early-write mode and OE to control output buffer impedance
All inputs, output TTL compatible and low capacitance
4096 refresh cycles every 64ms (A
0
- A
12
) (CbR only)
Includes (0.22uF x 12) decoupling capacitors
5.0V ± 5% Vcc
3.3V Vdd by onboard mounted regulators
TTL input converted to LVTTL by onboard mounted level
shifters.
APPLICATION
Main memory unit for computers, Microcomputer memory,
Refresh memory for CRT
PIN DESCRIPTION
Pin Name
A
0
-A
12
DQ1-DQ40
RAS 0
CAS 0
W 0
OE 0
Vcc
Vss
Function
Address Inputs
Data Inputs / Outputs
Row Address Strobe Input
Column Address Strobe Input
Write Control Input
Output Enable Input
Power Supply (+5V)
Ground (0V)
aOE
(time
60
15
30
15
DQ1 1
DQ2 2
DQ3 3
DQ4 4
DQ5 5
DQ6 6
Vss 7
DQ7 8
69 Key Pin
68 Vss
67 DQ40
66 DQ39
65 DQ38
64 DQ37
63 DQ36
62 Vcc
61 DQ35
60 DQ34
59 DQ33
58 DQ32
57 DQ31
56 DQ30
55 DQ29
54 Vss
53 DQ28
52 NC
51 NC
50 DQ27
49 DQ26
48 DQ25
47 /OE0
46 NC
45 DQ24
44 DQ23
43 Vcc
42 DQ22
41 DQ21
40 A12
39 A11
38 A10
37 A9
36 A8
35 A7
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