PUMA2S16000I-025 Advanced Packaging Technology Of America, PUMA2S16000I-025 Datasheet - Page 6

• Manufacturer Part Number: PUMA2S16000I-025
• Description: SRAM, PUMA S16000 is a 16 MBit SRAM module user configurable as 512K x 32, 1M x 16 or 2M x 22
• Manufacturer: Advanced Packaging Technology Of America

ISSUE 4.5 : September 2002
Write Cycle No.2 Timing Waveform
AC Characteristics Notes
(2) t
(3) During this period, I/O pins are in the output state. Input signals out of phase must not be applied.
(4) If the CS low transition occurs simultaneously with the WE low transition or after the WE low transition, outputs remain
(5) OE is continuously low. (OE=V
(6) D
(7) D
(8) If CS is low during this period, I/O pins are in the output state. Input signals out of phase must not be applied.
(9) t
(1) A write occurs during the overlap (t
in a high impedance state.
output voltage levels. These parameters are sampled and not 100% tested.
WR
WHZ
OUT
OUT
is measured from the earlier of CS or WE going high to the end of write cycle.
and t
is in the same phase as written data of this write cycle.
is the read data of next address.
D0~31out
D0~31in
OHZ
WE1~4
CS1~4
A0~A18
are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to
IL
t
)
AS(3)
High-Z
(5)
WP
) of a low CS and a low WE.
t
WHZ(3,9)
(6)
6
t
t
WC
AW
t
WP(1)
t
CW
(4)
High-Z
t
DW
t
OW
t
WR(2)
t
OH
t
DH
(8)
PUMA 2/77S16000/A - 020/025/35
(7)