SDRAM (Rev.1.3)
Mar'98
MITSUBISHI LSIs
M5M4V64S40ATP-8A,-8L,-8, -10L, -10
64M (4-BANK x 1048576-WORD x 16-BIT) Synchronous DRAM
Some of contents are subject to change without notice.
DESCRIPTION
PIN CONFIGURATION
(TOP VIEW)
The M5M4V64S40ATP is a 4-bank x 1048576-word x 16-bit
Synchronous DRAM, with LVTTL interface. All inputs and
outputs are referenced to the rising edge of CLK. The
Vdd
DQ0
VddQ
DQ1
1
2
3
4
54 Vss
53 DQ15
52 VssQ
51 DQ14
M5M4V64S40ATP achieves very high speed data rate up to
125MHz, and is suitable for main memory or graphic memory
in computer systems.
DQ2
VssQ
DQ3
DQ4
VddQ
DQ5
5
6
7
8
9
10
50 DQ13
49 VddQ
48 DQ12
47 DQ11
46 VssQ
45 DQ10
FEATURES
- Single 3.3v±0.3v power supply
- Clock frequency 125MHz /100MHz
DQ6
VssQ
DQ7
Vdd
DQML
/WE
11
12
13
14
15
16
44 DQ9
43 VddQ
42 DQ8
41 Vss
40 NC (Vref)
39 DQMU
- Fully synchronous operation referenced to clock rising edge
- 4 bank operation controlled by BA0, BA1 (Bank Address)
- /CAS latency- 2/3 (programmable)
- Burst length- 1/2/4/8/Full Page (programmable)
/CAS
/RAS
/CS
BA0(A13)
BA1(A12)
A10
A0
17
18
19
20
21
22
23
38 CLK
37 CKE
36 NC
35 A11
34 A9
33 A8
32 A7
- Burst type- sequential / interleave (programmable)
- Column access - random
- Burst Write / Single Write (programmable)
A1 24
A2 25
A3 26
Vdd 27
31 A6
30 A5
29 A4
28 Vss
- Auto precharge / All bank precharge controlled by A10
- Auto refresh and Self refresh
- 4096 refresh cycles /64ms
- Column address A0-A7
CLK
CKE
/CS
/RAS
: Master Clock
: Clock Enable
: Chip Select
: Row Address Strobe
- LVTTL Interface
- 400-mil, 54-pin Thin Small Outline Package (TSOP II) with
0.8mm lead pitch
/CAS
/WE
DQ0-15
DQML/U
: Column Address Strobe
: Write Enable
: Data I/O
: Output Disable/ Write Mask
Max.
Frequency
CLK Access
Time
A0-11
BA0,1
Vdd
: Address Input
: Bank Address
: Power Supply
M5M4V64S40ATP-8A
M5M4V64S40ATP-8
125MHz
100MHz
6ns
6ns
VddQ
Vss
VssQ
: Power Supply for Output
: Ground
: Ground for Output
M5M4V64S40ATP-10
100MHz
8ns
MITSUBISHI ELECTRIC
1
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