CT2553-PCB Aeroflex Circuit Technology, CT2553-PCB Datasheet - Page 28

• Manufacturer Part Number: CT2553-PCB
• Description: Advanced Integrated Mux Aim Hybrid For Mil-std-1553 / Sae-as15531 In Pcb Style
• Manufacturer: Aeroflex Circuit Technology

SCDCT2553PCB Rev A Preliminary 7/13/06
MEMENA-OUT
16MHz Clock
(Internal)
MEM/REG
READYD
MEMWR
D15-D00
SELECT
A15-A00
STRBD
RD/WR
SYMBOL
IOEN
tpw1
tpw2
td1
td2
td3
tz
tr
1. STRBD to IOEN (low) delay is two clock cycles. If contention occurs, delay is two clock cycles following release of bus.
2. CPU must release STRBD within 1.5µs of IOEN going active. READYD will go away within one clock cycle maximum.
NOTE:
DESCRIPTION
READYD low delay (CPU Handshake)
IOEN high delay (CPU Handshake)
READYD pulse width (CPU Handshake)
CPU MEMWR low delay
CPU MEMWR low pulse width
READYD to STRBD release
(SELECT
See Note 1
FIGURE 31 – CPU WRITES TO RAM TIMING
tz
•
STRBD) to IOEN
td3
See Note 2
RAM ADDRESS VALID
td1
RAM DATA VALID
28
tpw2
tr
tpw1
MIN
50
70
-
-
-
-
-
td2
MAX
1.37
150
120
1.8
20
-
-
Aeroflex Plainview
UNITS
ns
ns
ns
ns
ns
µs
µs