emc646sp16ak Emlsi Inc., emc646sp16ak Datasheet - Page 42

• Manufacturer Part Number: emc646sp16ak
• Description: 4mx16 Bit Cellularram
• Manufacturer: Emlsi Inc.

Figure 31. 4-Word Burst READ Operation - Fixed Latency
Note:
1. Non-default BCR settings: Fixed latency; latency code two (three clocks); WAIT active LOW; WAIT asserted during delay.
LB#/UB#
DQ[15:0]
A[21:0]
ADV#
WAIT
WE#
CLK
OE#
CE#
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
IH
IL
IH
IL
IH
IL
IH
IL
IH
IL
IH
IL
IH
IL
OH
OL
OH
OL
High-Z
High-Z
READ Burst Identified
Valid Address
t
t
t
CSP
SP
(WE# = HIGH)
SP
t
t
t
CEW
SP
SP
t
HD
t
t
HD
HD
t
AVH
t
AADV
t
CO
t
AA
t
CEM
t
OLZ
42
t
BOE
t
t
ACLK
KHTL
t
CLK
Output
Valid
t
KOH
t
Output
KHKL
Valid
Output
Valid
Don’t Care
EMC646SP16AK
t
KP
4Mx16 CellularRAM
t
KP
Output
Valid
t
HD
t
HD
t
OHZ
t
HZ
t
Undefined
CBPH
High-Z