SN54ACT8997, SN74ACT8997

SCAN-PATH LINKERS WITH 4-BIT IDENTIFICATION BUSES

SCAN-CONTROLLED IEEE STD 1149.1 (JTAG) TAP CONCATENATORS

SCAS157D – APRIL 1990 – REVISED DECEMBER 1996

19

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

SN54ACT8997

SN74ACT8997

UNIT

PARAMETER

TEST CONDITIONS

MIN

MAX

MIN

TYP†

MAX

UNIT

TDO DTDO(1 4) MCO

VCC =4 5V

IOH = –7 mA

3.6

VOH

TDO, DTDO(1–4), MCO

VCC = 4.5 V

IOH = –10 mA

3.7

V

VOH

DTMS(1–4), DCO (3 state),

VCC =4 5V

IOH = –11 mA

3.6

V

(),

(

),

DTCK

VCC = 4.5 V

IOH = –16 mA

3.7

TDO DTDO(1 4) MCO

VCC =4 5V

IOL = 7 mA

0.5

TDO, DTDO(1–4), MCO

VCC = 4.5 V

IOL = 10 mA

0.5

DCO (open drain or 3 state)

VCC =4 5V

IOL = 11 mA

0.5

VOL

DCO (open drain or 3 state)

VCC = 4.5 V

IOL = 16 mA

0.5

V

VOL

DTMS(1 4)

VCC =4 5V

IOL = 16 mA

0.5

V

DTMS(1–4)

VCC = 4.5 V

IOL = 24 mA

0.5

DTCK

VCC =4 5V

IOL = 32 mA

0.5

DTCK

VCC = 4.5 V

IOL = 48 mA

0.5

IOZ‡

DTDO(1–4), DTMS(1–4),

DCO, DTCK

VCC = 5.5 V,

VO = VCC or GND

±10

±5

µA

IOH

DCO (open drain)

VCC = 5.5 V,

VO = VCC

20

10

µA

MCI, DCI, TCK, ID(1–4)

VCC = 5.5 V,

VI = VCC or GND

±1

±1

II

TDI, DTDI(1–4),

VCC =5 5V

VI = VCC

±1

±1

µA

,(

),

TMS, TRST

VCC = 5.5 V

VI = GND

–0.1

–20

–0.1

–20

ICC

VCC = 5.5 V,

VI = VCC or GND, IO = 0

100

100

µA

∆ICC§

VCC = 5.5 V, One input at VI = 3.4 V,

Other inputs at VCC or GND

1

1

mA

Ci

VI = VCC or GND

6

pF

Co

DCO

VO = VCC or GND

15

pF

Co

All other outputs

VO = VCC or GND

10

pF

† Typical values are at VCC = 5 V.

‡ For I/O pins, the parameter IOZ includes the input-leakage current. For the DCO pin, the parameter IOZ includes the open-drain output-leakage

current.

§ This is the increase in supply current for each input being driven at TTL levels rather than VCC or GND.