SN54ABT16841, SN74ABT16841

20-BIT BUS-INTERFACE D-TYPE LATCHES

WITH 3-STATE OUTPUTS

SCBS222C – SEPTEMBER 1992 – REVISED MAY 1997

4

POST OFFICE BOX 655303

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

otherwise noted)

PARAMETER

TEST CONDITIONS

TA = 25°C

SN54ABT16841

SN74ABT16841

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

MAX

MIN

MAX

UNIT

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

–1.2

–1.2

V

VCC = 4.5 V,

IOH = –3 mA

2.5

2.5

2.5

VOH

VCC = 5 V,

IOH = –3 mA

3

3

3

V

VOH

VCC =4 5V

IOH = –24 mA

2

2

V

VCC = 4.5 V

IOH = –32 mA

2*

2

VOL

VCC =4 5V

IOL = 48 mA

0.55

0.55

V

VOL

VCC = 4.5 V

IOL = 64 mA

0.55*

0.55

V

Vhys

100

mV

II

VCC = 0 to 5.5 V, VI = VCC or GND

±1

±1

µA

II

VCC = 5 V, VI = VCC or GND

±5

µA

IOZPU‡

VCC = 0 to 2.1 V,

VO = 0.5 V to 2.7 V, OE = X

±50

±50

±50

µA

IOZPD‡

VCC = 2.1 V to 0,

VO = 0.5 V to 2.7 V, OE = X

±50

±50

±50

µA

IOZH

VCC = 2.1 V to 5.5 V,

VO = 2.7 V, OE ≥ 2 V

10

10

10

µA

IOZL

VCC = 2.1 V to 5.5 V,

VO = 0.5 V, OE ≥ 2 V

–10

–10

–10

µA

Ioff

VCC = 0,

VI or VO ≤ 4.5 V

±100

±100

µA

ICEX Outputs high

VCC = 5.5 V,

VO = 5.5 V

50

50

50

µA

IO§

VCC = 5.5 V,

VO = 2.5 V

–50

–100

–180

–50

–180

–50

–180

mA

Outputs high

V5 5 V I

0

0.5

0.5

ICC

Outputs low

VCC = 5.5 V, IO = 0,

VI =VCC or GND

89

89

89

mA

Outputs disabled

VI = VCC or GND

0.5

0.5

0.5

∆ICC¶

VCC = 5.5 V, One input at 3.4 V,

Other inputs at VCC or GND

1.5

1.5

1.5

mA

Ci

VI = 2.5 V or 0.5 V

3.5

pF

Co

VO = 2.5 V or 0.5 V

7.5

pF

* On products compliant to MIL-PRF-38535, this parameter does not apply.

† All typical values are at VCC = 5 V.

‡ This parameter is characterized, but not production tested.

§ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

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

timing requirements over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted) (see Figure 1)

SN54ABT16841

VCC = 5 V,

TA = 25°C

MIN

MAX

UNIT

MIN

MAX

tw

Pulse duration, LE high or low

4

4

ns

tsu

Setup time, data before LE

↓

3

3

ns

th

Hold time, data after LE

↓

2.6

2.6

ns