HMD4M144D9WG Datasheet, PDF (1/8 Pages) Hanbit Electronics Co.,Ltd – 64Mbyte(4Mx144) 200-pin ECC Mode 4K Ref. DIMM Design 5V

HANBit
HMD4M144D9WG
64Mbyte(4Mx144) 200-pin ECC Mode 4K Ref. DIMM Design 5V
Part No. HMD4M144D9WG
GENERAL DESCRIPTION
The HMD4M144D9WG is a 4Mbit x 144bit dynamic RAM high-density memory module. The module consists of eight
CMOS 4Mx16bit DRAMs in 50-pin TSOP packages and one CMOS 4M x 16bit DRAM in 50pin TSOP package
mounted on a 200-pin, double-sided, FR-4-printed circuit board. A 0.1uF or 4.7uF decoupling capacitor is mounted on the
printed circuit board for each DRAM components.
The module is a dual In-line memory module with edge connections and is intended for mounting in to 200-pin edge
connector sockets. All module components may be powered from a single 5V DC power supply and all inputs and outputs
are TTL-compatible.
FEATURES
w Access times : 50, 60 ns
w High -density 64MByte design
w Part identification
- HMD4M144D9WG (4K Cycles/64ms Ref, Gold)
w Single +5V ± 0.5V power supply
w JEDEC Standard pinout
w ECC mode operation
w TTL compatible inputs and output
OPTIONS
w Timing
50ns access
60ns access
w Packages
200-pin DIMM
MARKING
-5
-6
D
PERFORMANCE RANGE
Speed
-5
t_RAC
50ns
-6
60ns
t_CAC
13ns
15ns
t_RC
90ns
110ns
t_PC
35ns
40ns
PIN NAMES
Pin Name
Function
BA0-BA11 Address Input
DQ0-DQ143 Data In/Out
BWE
Read/Write Enable
Pin Name
BRAS
BCAS1,BCAS2
Vcc
Function
Pin Name
Function
Row Address Strobe
Vss
Ground
Column Address Strobe NC
No Connection
Power(+5V)
URL:www.hbe.co.kr
REV.1.0.(August.2002)
-1-
HANBit Electronics Co.,Ltd.