CMX208S1 View Datasheet(PDF) - MX-COM Inc
Part Name
Description
MFG CO.
'CMX208S1' PDF : 22 Pages View PDF
ISDN Dual Telephony Protocol Engine
21
CMX208 Advance Information
6.1.3.2 AC Timing Parameters
For the following conditions unless otherwise specified:
Xtal Frequency = 32MHz, AVDD = DVDD0 = DVDD1 = 3.0V to 5.0V, TAMB = - 40°C to +85°C.
6.1.3.2.1
Read/Write Operation
Where:
T = tCYK (system clock cycle time)
a = 1 (during address wait), otherwise, 0
n = Number of wait states (n = 2)
Parameter
Address setup time
Symbol
Conditions
tSAST
VDD = +5.0V ± 10%
ASTB high-level width
tWSTH
VDD = +5.0 V ± 10%
Address hold time to (ASTB↓)
tHSTLA
VDD - +5.0 V ± 10%
Address hold time (to RD ↑ )
tHRA
Delay from address to RD ↓
tDAR
Address float time (to RD ↓ )
tFRA
Delay from address to data input
tDAID
VDD = +5.0V ±10%
VDD = +5.0V ±10%
Delay from ASTB↓ to data input
tDSTID
VDD = +5.0V ± 10%
Delay from RD ↓ to data input
Delay from ASTB↓ to RD ↓
Data hold time (to RD ↑ )
Delay from RD ↑ to address active
tDRID
tDSTR
tHRID
tDRA
Delay from RD ↑ to ASTB↑
RD low-level width
Address hold time (to WR ↑ )
Delay from address to WR ↓
Delay from ASTB↓ to data output
tDRST
tWRL
tHWA
tDAW
tDSTOD
VDD = +5.0 V ± 10%
VDD = +5.0 V ± 10%
After program is read
After program is read
VDD = +5.0 V ± 10%
After data is read
After data is read
VDD = 5.0 V ± 10%
VDD = +5.0V ± 10%
VDD = +5.0V ± 10%
Delay from WR ↓ to data output
Delay from ASTB↓ to WR ↓
Data setup time (to WR ↑ )
Data hold time (to WR ↑ )Note 1
Delay from WR ↑ to ASTB↑
WR low-level width
tDWOD
tDSTW
tSODW
tHWOD
tDWST
tWWL
VDD = +5.0 V ± 10%
VDD = +5.0V ± 10%
VDD = +5.0V ± 10%
Min.
(0.5 + a) T - 15
(0.5 + a) T - 31
(0.5 + a) T - 17
(0.5 + a) T - 40
0.5T - 24
0.5T - 34
0.5T - 14
(1 + a) T - 9
(1 + a) T - 15
0.5T - 9
0
Max.
0
(2.5 + a + n) T - 37
(2.5 + a + n) T - 52
(2 + n) T - 40
(2 + n) T - 60
(1.5 + n) T - 50
(1.5 + n) T - 70
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
0.5T - 8
ns
0.5T - 12
ns
1.5T - 8
ns
1.5T - 12
ns
0.5T - 17
ns
(1.5 + n) T - 30
ns
(1.5 + n) T - 40
ns
0.5T - 14
ns
(1 + a) T - 5
ns
(1 + a) T - 15
ns
0.5T + 19
ns
0.5T + 35
ns
0.5T - 11
ns
0.5T - 9
ns
(1.5 + n) T - 30
ns
(1.5 + n) T - 40
ns
0.5T - 5
ns
0.5T - 25
ns
0.5T - 12
ns
(1.5 + n) T - 30
ns
(1.5 + n) T - 40
ns
MX-COM, Inc
4800 Bethania Station Road, Winston-Salem, NC, 27105-1201, USA
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
All trademarks and service marks are held by their respective companies
2000 MX-COM, Inc.
Doc. # 20480214.001
2000 Chiron Technology Limited
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