MT8924 Zarlink Semiconductor, MT8924 Datasheet - Page 14

• Manufacturer Part Number: MT8924
• Description: PCM Conference Circuit (PCC)
• Manufacturer: Zarlink Semiconductor

Preliminary Information
AC Electrical Characteristics - Read Timing
10
11
12
13
14
15
RD
WR
CS
C/D
DOUT
1
2
3
4
5
6
7
8
9
Read Pulse low width
Read Pulse high width
Repetition Interval between active Read
Pulses
Write high setup time to active Read
Pulse
Write high hold time from active Read
Pulse
Read Pulse rise time
Read Pulse fall time
Low setup time to RD falling edge
Low hold time from RD falling edge
High setup time to RD falling edge
High hold time from RD rising edge
C/D setup time to RD Pulse start
Hold time from Read Pulse end
Propagation delay from falling edge of
Read Pulse
Propagation delay from rising edge of
Read Pulse to high impedance state
t
SLCSRD
Characteristics
t
t
SCDRD
SHWR
t
PDD
Figure 9 - Read Timing Characteristics
t
WLRD
t
t
t
t
t
SHCSRD
HHCSRD
t
t
SLCSRD
HLCSRD
t
t
t
t
t
t
SCDRD
HCDRD
HCDRD
REPRD
Sym
HHWR
WHRD
SHWR
HHWR
WLRD
t
t
t
t
RRD
FRD
PDD
t
HZ
HZ
t
WHRD
t
SHCSRD
(T
t
HLCSRD
OP
t
Min
180
200
500
REPRD
20
20
25
=0 to 70 C; V
0
0
0
0
0
t
FRD
Typ
DD
=5V5%)
Max
120
60
60
80
t
HHCSRD
t
RRD
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Active case
Active case
Active case
Active case
Read; C
Write; C
Test Conditions
MT8924
L
L
=200pF
=200pF
8-15