SN75LBC976

9CHANNEL DIFFERENTIAL TRANSCEIVER

SLLS133D − AUGUST 1992 − REVISED MAY 1995

2−6

POST OFFICE BOX 655303

POST OFFICE BOX 1443

receiver switching characteristics over recommended operating conditions (see Figure 5) (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Propagation delay time, high- to low-level output (t

) or

21.5

33

tpd

Propagation delay time, high- to low-level output (tPLH) or

low- to high-level output (tPHL)

VCC = 5 V,

TA = 25°C

22.6

31.6

ns

tpd

low- to high-level output (tPHL)

VCC = 5 V,

TA = 70°C

23.4

32.4

ns

tsk(lim)

Skew limit, the maximum difference in propagation delay times

12

ns

tsk(lim)

Skew limit, the maximum difference in propagation delay times

between any two drivers on any two devices

VCC = 5 V,

See Note 2

9

ns

tsk(p)

Pulse skew ( | tPHL − tPLH|)

2

6

ns

tt

Transition time ( tr or tf )

3

ns

† All typical values are at VCC = 5 V, TA = 25°C.

NOTE 2: This specification applies to any 5

°C band within the operating temperature range.

transceiver switching characteristics over recommended operating conditions

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

ten(RXL)

Enable time, transmit-to-receive to low-level output

150

ns

ten(RXH) Enable time, transmit-to-receive to high-level output

150

ns

ten(TXL)

Enable time, receive-to-transmit to low-level output

See Figure 6

80

ns

ten(TXH)

Enable time, receive-to-transmit to high-level output

See Figure 6

80

ns

tsu

Setup time, CDE0, CDE1, CDE2, BSR, or CRE to active input(s) or output(s)

150

ns

thermal characteristics

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

RθJA

Junction-to-free-air thermal resistance

Board mounted,

No air flow

50

°C/W

RθJC Junction-to-case thermal resistance

12

°C/W

PARAMETER MEASUREMENT INFORMATION

CDE0, CDE1, CDE2,

CRE, and BSR at 0 V,

Others Open,

(see Note A)

B+

B−

A

VIT + ,

VIT −,

or

VID

VOH

or

VOL

−IOH,

−IOL,

or

−IOZ

−II,

−IIH,

or

−IIL

VI,

VIC,

VIH,

or

VIL

NOTE A: For the IOZ measurement, BSR is at 5 V and CDE0, CDE1, and CDE2 are at 0 V.

Figure 1. Receiver Test Circuit and Input Conditions