HANBiT
HMD4M64D16E
32Mbyte(4Mx64) EDO Mode 4K Ref. 5V, DIMM 168 pin
Part No. HMD4M64D16E
GENERAL DESCRIPTION
The HMD4M64D16E is a 4Mx64bits Dynamic RAM high density memory module. The HMD4M64D16E consists of
sixteen CMOS 4Mx4bits DRAMs in SOJ/TSOPІІ 400mil packages mounted on a 168-pin glass-epoxy substrate. A 0.1 or
0.22uF decoupling capacitor is mounted on the printed circuit board for each DRAM. The HMD4M64D16E is a Dual In-line
Memory Module and is intended for mounting into 168 pin edge connector sockets
FEATURES
PERFORMANCE RANGE
SPEED
tRAC
50ns
60ns
tCAC
15ns
17ns
tRC
tHPC
20ns
25ns
w Part Identification
-5
-6
84ns
104ns
HMD4M64D16E --- 4KCycles/64ms Ref, Gold Plate Lead
w High-density 32MByte design
w New JEDEC standard proposal without buffer
w CAS-before-RAS Refresh capability
w RAS-only and Hidden refresh capability
w Single +5± 0.5V power supply
w EDO mode operation.
w Timing
50ns access
60ns access
w Packages
-5
-6
w LVTTL compatible inputs and outputs
w FR4-PCB design
w Access times : 50, 60ns
168-pin DIMM
D
PIN NAMES
Pin Name
Function
Pin Name
Function
Pin Name
Function
A0-A11
Address Input (4k /RAS0, /RAS2 Row Address Strobe
ref)
Vss
Ground
A0-A12
Address Input (8k /CAS0 - /CAS7 Column
Address
NC
No Connection
Power (+5V)
ref)
/WE0,/WE2 Read/Write Enable
Strobe
SCL
DU
Serial Clock
Don't use
Vcc
/OE0,/OE2
Output Enable
SDA
Serial Address /Data
I/O
SA0 – SA2
Address in EEPROM
CB0 - CB7
Check Bit
DQ0-DQ63
Data In/Out
URL:www.hbe.co.kr
REV.1.0 (August.2002)
- 1 -
HANBit Electronics Co.,Ltd.