AM79C930VCW datasheet(147/161 Pages) AMD

147 / 161 page

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:

–65 to +150

°C

. . . . . . . . . . . .

Ambient Temperature Under Bias:

–65 to +125

°C

. . .

Supply Voltage to AVSS

or DVSS (AVDD, DVDD):

–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 (TA)0

°C to + 70°C

. . . . . . . . . . . . . . . . .

Supply Voltages (VCC,VDDT, VDDU1, VDDU2, VDDM, VDDP)

3.0 V to 5.25 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply Voltages

(AVDD, VDD5)

+5 V

± 5%

. . . . . . . . . . . . . . . . . . . . . . . .

All inputs within the range: VSS – 0.5 V

≤ V

+ 0.1 X

VDD – where VSS and VDD are appropriate reference pins

for a given input pin. (See section on power supply

pin descriptions.)

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

Test Conditions

Min

Max

Units

t25

TCK period

100

t30

TDI, TMS setup time to TCK

↑

t31

TDI, TMS hold time from TCK

↑

t32

TDO valid delay from TCK

↓

360

t34

All outputs (non-test) valid delay

from TCK

↓

t35

All outputs (non-test) float delay

from TCK

↓

Note 1

t36

All inputs (non-test) setup time to

TCK

↑

t37

All inputs (non-test) hold time from

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.

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