zl50023 Zarlink Semiconductor, zl50023 Datasheet - Page 64

• Manufacturer Part Number: zl50023
• Description: Enhanced 4 K Channel Tdm Switch With Rate Conversion
• Manufacturer: Zarlink Semiconductor

† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25°C, VDD_CORE at 1.8 V and VDD_IO at 3.3 V and are for design aid only: not guaranteed and not subject to produc-
AC Electrical Characteristics
Note 1:
Note 2:
10 Acknowledgement delay time.
12 RDY drive low to HiZ
11 Acknowledgement hold time.
tion testing.
1
2
3
4
5
6
7
8
9
CS
RD
WR
A0-A13
D0-D15
RDY
CS de-asserted time
RD setup to CS falling
WR setup to CS falling
Address setup to CS falling
RD hold after CS rising
WR hold after CS rising
Address hold after CS rising
Data setup to RDY high
Data hold after CS rising
From CS low to RDY high:
From CS high to RDY low
Registers
Memory
discharge C
A delay of 500 µs to 2 ms (see Section 13.2 on page 33) must be applied before the first microprocessor access is
performed after the RESET pin is set high.
High impedance is measured by pulling to the appropriate rail with R
Characteristics
L
.
Figure 22 - Intel Non-Multiplexed Bus Timing - Read Access
†
- Intel Non-Multiplexed Bus Mode - Read Access
t
CSD
Sym.
t
t
t
t
t
t
t
Zarlink Semiconductor Inc.
CSD
t
t
t
t
t
CSZ
AKD
AKH
AKZ
WS
WH
RS
RH
AH
DS
AS
t
t
t
RS
AS
WS
ZL50023
Min.
15
10
10
64
5
0
0
0
8
7
4
Typ.
VALID ADDRESS
t
AKD
‡
L
, with timing corrected to cancel time taken to
t
DS
Max.
175
185
VALID READ DATA
12
8
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
t
AH
AKH
t
CSZ
C
C
(Note 1)
C
C
C
(Note 1)
t
t
RH
WH
L
L
L
L
L
Test Conditions
t
= 50 pF
= 50 pF, R
= 50 pF
= 50 pF
= 50 pF, R
AKZ
Data Sheet
V
V
V
V
V
V
CT
CT
CT
CT
L
L
CT
CT
= 1 K
= 1 K
2