AMD
P R E L I M I N A R Y
AC CHARACTERISTICS
OPERATING RANGES
Commercial (C) Devices
5.0 AND 3.3 V IEEE 1149.1 INTERFACE
Temperature (TA) . . . . . . . . . . . . . . . . . 0°C to + 70°C
ABSOLUTE MAXIMUM RATINGS
Supply Voltages (VCC,VDDT, VDDU1, VDDU2, VDDM, VDDP)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 V to 5.25 V
Storage Temperature: . . . . . . . . . . . . –65 to +150°C
Ambient Temperature Under Bias: . . . –65 to +125°C
Supply Voltages
(AVDD, VDD5) . . . . . . . . . . . . . . . . . . . . . . . . +5 V ± 5%
Supply Voltage to AVSS
or DVSS (AVDD, DVDD): . . . . . . . . . . . . . . –0.3 to +6 V
All inputs within the range: VSS – 0.5 V ≤ VIN ≤ VDD + 0.1 X
VDD – where VSS and VDD are appropriate reference pins
for a given input pin. (See section on power supply
pin descriptions.)
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.
CL = 50 pF unless otherwise noted
Operating ranges define those limits between which the func-
tionality of the device is guaranteed.
Parameter
Symbol
Parameter Description
TCK period
Test Conditions
Min
100
16
10
3
Max
Units
ns
t25
t30
t31
t32
t34
TDI, TMS setup time to TCK ↑
TDI, TMS hold time from TCK ↑
TDO valid delay from TCK ↓
ns
ns
60
60
ns
All outputs (non-test) valid delay
3
ns
from TCK ↓
t35
t36
t37
All outputs (non-test) float delay
from TCK ↓
70
ns
ns
ns
Note 1
All inputs (non-test) setup time to
TCK ↑
8
All inputs (non-test) hold time from
25
TCK ↑
Note:
1. Parameter is not included in production test.
ANALOG-TO-DIGITAL (A/D)
CONVERTER CHARACTERISTICS
Resolution: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 bits
Resolution Tested: . . . . . . . . . . . . . . . . . . . . . . 4 bits
Sample Rate: . . . . . . . . . . . . . . 1.66 MSPS (600 ns)*
Recommended A/D Ref Range: . . . . 1.25 to 1.75 V**
Range of ADIN1 + ADIN2: . . . . . . . 0 to (ADREF x 2)
*User should program a 0011 in A2DT[3:0] of TCR25.
**ADREF is doubled internally.
Am79C930
147
AMD [ AMD ]
