SN54LVT18502

3.3-V ABT SCAN TEST DEVICE

WITH 18-BIT UNIVERSAL BUS TRANSCEIVERS

SCBS669 – JULY 1996

25

POST OFFICE BOX 655303

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

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

VCC = 2.7 V,

II = –18 mA

–1.2

V

VCC = MIN to MAX‡,

IOH = –100 µA

VCC–0.2

VOH

VCC = 2.7 V,

IOH = –3 mA

2.4

V

VOH

VCC =3V

IOH = –8 mA

2.4

V

VCC = 3 V

IOH = –24 mA

2

VCC =2 7V

IOL = 100 µA

0.2

VCC = 2.7 V

IOL = 24 mA

0.5

VOL

IOL = 16 mA

0.4

V

VCC = 3 V

IOL = 32 mA

0.5

IOL = 48 mA

0.55

CLK LE TCK

VCC = 3.6 V,

VI = VCC or GND

±1

CLK, LE, TCK

VCC = 0 or MAX‡,

VI = 5.5 V

10

VI = 5.5 V

50

II

OE, TDI, TMS

VCC = 3.6 V

VI = VCC

1

µA

II

VI = 0

–25

–100

µA

§

VI = 5.5 V

20

A or B ports§

VCC = 3.6 V

VI = VCC

1

VI = 0

–5

II(h ld)¶

AorB ports

VCC =3V

VI = 0.8 V

75

500

µA

II(hold)¶

A or B ports

VCC = 3 V

VI = 2 V

–75

–500

µA

IOZH

TDO

VCC = 3.6 V,

VO = 3 V

50

µA

IOZL

TDO

VCC = 3.6 V,

VO = 0.5 V

–50

µA

IOZPU

TDO

VCC = 0 to 1.5 V,

VO = 0.5 V or 3 V

±50

µA

IOZPD

TDO

VCC = 1.5 V to 0,

VO = 0.5 V or 3 V

±50

µA

VCC = 3.6 V,

Outputs high

0.7

3

ICC

VCC = 3.6 V,

IO = 0,

Outputs low

21

30

mA

VI = VCC or GND

Outputs disabled

0.7

3

∆ICC#

VCC = 3 V to 3.6 V, One input at VCC – 0.6 V,

Other inputs at VCC or GND

0.2

mA

Ci

VI = 3 V or 0

4

pF

Cio

VO = 3 V or 0

11

pF

Co

VO = 3 V or 0

8

pF

† All typical values are at VCC = 3.3 V, TA = 25°C.

‡ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

§ Unused pins at VCC or GND

¶ The parameter II(hold) includes the off-state output leakage current.

# This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.