MT8924 데이터 시트보기 (PDF) - Mitel Networks
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MT8924 Datasheet PDF : 14 Pages
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Preliminary Information
MT8924
AC Electrical Characteristics - Read Timing (TOP=0 to 70°C; VDD=5V±5%)
Characteristics
Sym Min Typ Max Units Test Conditions
1 Read Pulse low width
tWLRD
180
2 Read Pulse high width
tWHRD 200
3 Repetition Interval between active Read tREPRD 500
Pulses
4 Write high setup time to active Read
tSHWR
0
Pulse
5 Write high hold time from active Read tHHWR 20
Pulse
6 Read Pulse rise time
tRRD
7 Read Pulse fall time
tFRD
8 Low setup time to RD falling edge
tSLCSRD
0
9 Low hold time from RD falling edge
tHLCSRD
0
10 High setup time to RD falling edge
tSHCSRD
0
11 High hold time from RD rising edge
tHHCSRD
0
12 C/D setup time to RD Pulse start
tSCDRD
20
13 Hold time from Read Pulse end
tHCDRD
25
14 Propagation delay from falling edge of tPDD
Read Pulse
15 Propagation delay from rising edge of
tHZ
Read Pulse to high impedance state
ns
ns
ns
ns
ns
60
ns
60
ns
ns Active case
ns Active case
ns Active case
ns Active case
ns
ns
120
ns Read; CL=200pF
80
ns Write; CL=200pF
RD
WR
CS
C/D
DOUT
tWLRD
tWHRD
tSHWR
tSLCSRD
tSCDRD
tHHWR
tFRD
tREPRD
tSHCSRD
tHLCSRD
tHCDRD
tPDD
tHZ
tRRD
tHHCSRD
Figure 9 - Read Timing Characteristics
8-15
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