V53C16256SH Datasheet, PDF (1/19 Pages) Mosel Vitelic, Corp – 256K X 16 FAST PAGE MODE CMOS DYNAMIC RAM WITH SELF REFRESH

MOSEL VITELIC
V53C16256SH
256K X 16 FAST PAGE MODE
CMOS DYNAMIC RAM WITH
SELF REFRESH
PRELIMINARY
HIGH PERFORMANCE
Max. RAS Access Time, (t_RAC)
Max. Column Address Access Time, (t_CAA)
Min. Fast Page Mode Cycle Time, (t_PC)
Min. Read/Write Cycle Time, (t_RC)
Features
s 256K x 16-bit organization
s Fast Page Mode for a sustained data rate
of 43 MHz
s RAS access time: 40, 50 ns
s Dual CAS Inputs
s Low power dissipation
s Read-Modify-Write, RAS-Only Refresh,
CAS-Before-RAS Refresh, and Self Refresh
s Refresh Interval: 512 cycles/8 ms
s Available in 40-pin 400 mil SOJ and
40/44L-pin 400 mil TSOP-II packages
s Single 5.0V ±10% Power Supply
s TTL Interface
s Self Refresh: 512 cycles/8ms
40
40 ns
20 ns
23 ns
75 ns
50
50 ns
24 ns
28 ns
90 ns
Description
The V53C16256SH is a 262,144 x 16 bit high-
performance CMOS dynamic random access mem-
ory. The V53C16256SH offers Fast Page mode
with dual CAS inputs. An address, CAS and RAS in-
put capacitances are reduced to one quarter when
the x4 DRAM is used to construct the same memory
density. The V53C16256SH has symmetric ad-
dress and accepts 512 cycle 8ms interval.
All inputs are TTL compatible. Fast Page Mode
operation allows random access up to 512 x 16 bits,
within a page, with cycle times as short as 23ns.
The V53C16256SH is best suited for graphics,
and DSP applications.
Device Usage Chart
Operating
Temperature
Range
0°C to 70°C
Package Outline
K
T
•
•
V53C16256SH Rev. 0.1 December 1998
Access Time (ns)
40
50
•
•
1
Power
Std.
•
Temperature
Mark
Blank