HY51V64164A,HY51V65164A
4Mx16, Extended Data Out mode
2nd Generation
DESCRIPTION
This family is a 64M bit dynamic RAM organized 4,194,304 x 16-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 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
50-pin plastic 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 cycles
Part number
HY51V64164A1)
HY51V65164A2)
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
HY51V64164ATC
HY51V64164ALTC
HY51V64164ASLTC
HY51V65164ATC
HY51V65164ALTC
Refresh
Power
Package
8K
8K
8K
4K
4K
4K
50Pin TSOP-II
50Pin TSOP-II
50Pin TSOP-II
50Pin TSOP-II
50Pin TSOP-II
50Pin TSOP-II
L-part
*SL-part
L-part
HY51V65164ASLTC
*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.12/Sep.98
1