HY51V64404A,HY51V65404A
16Mx4, Extended Data Out mode
2nd Generation
DESCRIPTION
This family is a 64M bit dynamic RAM organized 16,777,216 x 4-bit configuration with Extended Data Out mode CMOS
DRAMs. Extended data out mode is a kind of page mode which is useful for the read operation. The circuit and process
design allow this device to achieve high performance and low power dissipation. Optional features are access time(50 or
60ns) and refresh cycle(8K ref. or 4K ref.)and package(SOJ or TSOP-ll) and power consumption (Normal or Low power
with self refresh). Hyundai’s advanced circuit design and process technology allow this device to achieve high bandwidth,
low power consumption and high reliability.
FEATURES
Ÿ Extended data out operation
Ÿ JEDEC standard pinout
Ÿ Read-modify-write capability
32-pin plastic SOJ/TSOP-II (400mil)
Ÿ Multi-bit parallel test capability
Ÿ Single power supply of 3.3 ± 0.3V
Ÿ LVTTL(3.3V) compatible inputs and outputs
Ÿ Early write or output enable controlled write
Ÿ /CAS-before-/RAS, /RAS-only, Hidden and
Self refresh capability
Ÿ Max. Active power dissipation
Ÿ Fast access time and cycle time
Speed
50
8K refresh
4K refresh
504mW
Speed
50
tRAC
50ns
60ns
tCAC
13ns
15ns
tHPC
20ns
25ns
396mW
324mW
60
432mW
60
Ÿ Refresh cycle
Part number
HY51V64404A1)
HY51V65404A2)
Refresh
Normal
L-part
8K
4K
64ms
128ms
1) Normal read / write, /RAS only refresh : 8K cycles / 64ms
/CAS-before-/RAS, Hidden refresh : 4K cycles / 64ms
2) Normal read / write, /RAS only refresh : 4K cycles / 64ms
/CAS-before-/RAS, Hidden refresh
: 4K cycles / 64ms
ORDERING INFORMATION
Part Name
HY51V64404ATC
HY51V64404ALTC
HY51V64404ASLTC
HY51V65404ATC
HY51V65404ALTC
Refresh
Power
Package
8K
8K
8K
4K
4K
4K
32Pin SOJ/TSOP-II
32Pin SOJ/TSOP-II
32Pin SOJ/TSOP-II
32Pin SOJ/TSOP-II
32Pin SOJ/TSOP-II
32Pin SOJ/TSOP-II
L-part
*SL-part
L-part
HY51V65404ASLTC
*SL-part
*SL : Self refresh with low power.
This document is a general product description and is subject to change without notice. Hyundai electronics does not assume any responsibility for use of
circuits described. No patent licences are implied
Hyundai Semiconductor
Rev.10/Sep.98
1