
STD130
5-90
Samsung ASIC
SPARAMBW_HD
High-Density Single-Port Asynchronous Static RAM with Bit-Write
6.
The standby power is measured on the condition that only CSN is disable mode and other signals are in
operation mode except that OEN is tied to low. If any of signals are activated while in standby mode, the
power will be consumed because the input switching activities are occurred by the signal transition.
Therefore, to reduce unnecessary power consumption, you should keep stable for all signals while in
standby mode.
Power reduction during standby mode.
Characteristics
Definition for AC Timing
(ns)
Symbol
t
cyc
t
cas
t
bwh
t
wh
t
ch
t
dh
t
acc
t
da
t
zd
t
od
Definition for Power Consumption
(
μ
W/MHz)
Power_read
The dynamic average power consumption while in a read cycle
Power_write
The dynamic average power consumption while in a write cycle
Power_standby
The standby power consumption while CSN is high, OEN is low and other signals are in
normal operations
Definition for Area
(
μ
m)
Width
The physical width in X-direction
Height
The physical height in Y-direction
Description
Symbol
Description
Address cycle time
Address setup time for CSN rise
BWEN hold time
WEN hold time
CSN hold time
Data-In hold time
Data access time for read cycle
De-access time
DOUT high-Z to drive time
OEN to valid output time
t
as
t
ah
t
bws
t
cs
t
ds
t
wen
t
wacc
t
wda
t
dz
Address setup time
Address hold time
BWEN setup time
CSN setup time
Data-In setup time
WEN pulse width low
Data access time for WEN rise
De-access time for WEN rise
DOUT drive to high-Z time