參數(shù)資料
型號(hào): AM79C32AJC
廠商: ADVANCED MICRO DEVICES INC
元件分類(lèi): 數(shù)字傳輸電路
英文描述: Digital Subscriber Controller⑩ (DSC⑩) Circuit
中文描述: DATACOM, DIGITAL SLIC, PQCC44
封裝: PLASTIC, LCC-44
文件頁(yè)數(shù): 83/101頁(yè)
文件大?。?/td> 1607K
代理商: AM79C32AJC
Am79C30A/32A Data Sheet
83
OSC (XTAL2) Timing
Note:
Frequency = 12.288 MHz ±80 ppm.
MCLK Timing
Figure 33.
External Clock Driver (XTAL2) Timing
Parameter Symbol
Parameter Description
Test Conditions
Min
Max
Units
t
CLCL
t
CH
t
CL
t
CLCH
t
CHCL
Oscillator Period
81.374
81.387
ns
High Time
33
ns
Low Time
33
ns
Rise Time
10
ns
Fall Time
10
ns
Parameter Symbol
Parameter Description
Test Conditions
Min
Max
Units
t
D
XTAL2 V
CC
/2 to
MCLK V
CC
/2
MCLK Load < 80pF
60
ns
t
RISE1
Rise Time
MCLK Load < 80pF
0.5 V to (VCC–0.5V)
15
ns
t
RISE2
Rise Time
MCLK Load < 40pF
1.0 V to 3.5 V
5
ns
t
FALL1
Fall Time
MCLK Load < 80pF
(VCC–0.5V) to 0.5 V
15
ns
t
FALL2
Fall Time
MCLK Load < 40pF
3.5 V to 1.0 V
5
ns
t
PWH
High Pulse Width
12.288 MHz
6.144 MHz
4.069 MHz
3.072 MHz
1.536 MHz
768 kHz
384 kHz
MCLK Load < 80pF
33
73
114
155
317
643
1.294
ns
ns
ns
ns
ns
ns
μs
t
PWL
Low Pulse Width
12.288 MHz
6.144 MHz
4.096 MHz
3.072 MHz
1.536 MHz
768 kHz
384 kHz
MCLK Load < 80pF
33
73
114
155
317
1.294
ns
ns
ns
ns
ns
μs
09893H-25
t
CHCL
t
CLCH
t
CLCL
t
CL
0.5 V
V
CC
– 0.5 V*
t
CH
Note:
*Not TTL V
IH
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