emc643sp16ak Emlsi Inc., emc643sp16ak Datasheet - Page 37

• Manufacturer Part Number: emc643sp16ak
• Description: 4mx16 Bit Cellularram Ad-mux
• Manufacturer: Emlsi Inc.

Figure 24: Single-Access Burst READ Operation - Variable Latency
1. Non-default BCR settings: Latency code two (three clocks); WAIT active LOW; WAIT asserted during delay.
A/DQ[15:0]
LB#/UB#
A[21:16]
WAIT
ADV#
WE#
OE#
CE#
CLK
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
IH
IL
OH
OL
High-Z
Valid Address
READ Burst Identified
Address
t
t
CSP
SP
(WE# = HIGH)
t
Valid
SP
t
SP
t
t
SP
SP
t
HD
t
t
t
t
KHTL
HD
HD
HD
t
CLK
t
KHKL
V
V
t
OH
OL
t
ABA
KP
t
t
CEM
High-Z
OLZ
t
KOH
t
BOE
37
t
KHTL
t
ACLK
Valid Output
t
KP
t
t
t
KOH
HD
HD
t
OHZ
t
HZ
4Mx16 CellularRAM AD-MUX
Don’t Care
EMC643SP16AK
High-Z
High-Z
Undefined