
P R E L I M I N A R Y
AMD
147
Am79C930
AC CHARACTERISTICS
5.0 AND 3.3 V IEEE 1149.1 INTERFACE
ABSOLUTE MAXIMUM RATINGS
Storage Temperature:
. . . . . . . . . . . .
Ambient Temperature Under Bias:
Supply Voltage to AV
SS
or DV
SS
(AV
DD
, DV
DD
):
. . . . . . . . . . . . . .
–65 to +150
°
C
–65 to +125
°
C
. . .
–0.3 to +6 V
Stresses above those listed under Absolute Maximum
Ratings may cause permanent device failure. Functionality at
or above these limits is not implied. Exposure to Absolute
Maximum Ratings for extended periods may affect
device reliability.
OPERATING RANGES
Commercial (C) Devices
Temperature (T
A
)
Supply Voltages (V
CC
,V
DDT
, V
DDU1
, V
DDU2
, V
DDM
, V
DDP
)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Voltages
(AV
DD
, V
DD5
)
. . . . . . . . . . . . . . . . . . . . . . . .
All inputs within the range: V
SS
– 0.5 V
≤
V
IN
≤
V
DD
+ 0.1 X
V
DD
– where V
SS
and V
DD
are appropriate reference pins
for a given input pin. (See section on power supply
pin descriptions.)
CL = 50 pF unless otherwise noted
0
°
C to + 70
°
C
. . . . . . . . . . . . . . . . .
3.0 V to 5.25 V
+5 V
±
5%
Operating ranges define those limits between which the func-
tionality of the device is guaranteed.
Parameter
Symbol
t
25
t
30
t
31
t
32
t
34
Parameter Description
TCK period
TDI, TMS setup time to TCK
↑
TDI, TMS hold time from TCK
↑
TDO valid delay from TCK
↓
All outputs (non-test) valid delay
from TCK
↓
All outputs (non-test) float delay
from TCK
↓
All inputs (non-test) setup time to
TCK
↑
All inputs (non-test) hold time from
TCK
↑
Test Conditions
Min
100
16
10
3
3
Max
Units
ns
ns
ns
ns
ns
60
60
t
35
70
ns
Note 1
t
36
8
ns
t
37
25
ns
Note:
1. Parameter is not included in production test.
ANALOG-TO-DIGITAL (A/D)
CONVERTER CHARACTERISTICS
Resolution:
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resolution Tested:
. . . . . . . . . . . . . . . . . . . . . .
Sample Rate:
. . . . . . . . . . . . . .
Recommended A/D Ref Range:
Range of ADIN1 + ADIN2:
7 bits
4 bits
1.66 MSPS (600 ns)*
1.25 to 1.75 V**
. . . .
0 to (ADREF x 2)
. . . . . . .
*User should program a 0011 in A2DT[3:0] of TCR25.
**ADREF is doubled internally.