AM79212JC AMD (ADVANCED MICRO DEVICES), AM79212JC Datasheet - Page 28

• Manufacturer Part Number: AM79212JC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79212JC

• Lead Free Status / RoHS Status: Supplier Unconfirmed

SWITCHING CHARACTERISTICS
Microprocessor Interface
Min. and Max. values are valid for all digital outputs with a 100 pF load, except DU which is valid with 8 loads, (see
note 2).
Data Clock
For 2.048 MHz ± 100 ppm or 4.096 MHz ± 100 ppm
Notes:
1. The Data Clock (DCL) may be stopped in the High or Low state indefinitely without loss of information.
2. The drive capability of the GCI interface allows eight ASLAC devices per linecard (eight subscriber lines) without using external
28
No.
No.
10
buffers.
1
2
3
4
5
6
7
8
9
11
12
13
14
15
t
t
t
t
t
t
t
t
t
t
Symbol
FSW
FSR
FSF
FSS
FSH
DDC
DDF
IDS
IDH
RST
t
t
t
t
t
Symbol
DCY
DCR
DCF
DCH
DCL
FS High pulse width
FS rise time of clock
FS fall time of clock
FS setup time
FS hold time
Output delay from DCL
Output delay from FS
Input data setup time
Input data hold time
Reset pulse width
Data clock period (2.048 MHz)
Data clock period (4.096 MHz)
Rise time of clock
Fall time of clock
DCL High pulse width
DCL Low pulse width
Parameter
Parameter
Table 7. Microprocessor Interface
Am79212/Am79C202 Data Sheet
P R E L I M I N A R Y
Table 8. Data Clock
t
Min.
DCH
478
239
Min.
90
90
130
70
50
50
50
+20
488.28
244.14
Typ.
Typ.
t
Max.
DCL
Max.
498
249
60
60
100
150
60
60
–50
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
Note
Note
2
1
1