µA

µA

µA

mA

VCC = 5.5 V,

VO = 2.7 V

VCC = 5.5 V,

VO = 0.4 V

VCC = 5.5 V,

VI = 2.7 V

VCC = 5.5 V,

VI = 0.4 V

IOZH

IOZL

IIH

IIL

ns

Pulse duration (see Note 2)

tw

PAL16L8A-2M, PAL16R4A-2M, PAL16R6A-2M, PAL16R8A-2M

STANDARD HIGH-SPEED PAL® CIRCUITS

SRPS016 – D2705, FEBRUARY 1984 – REVISED MARCH 1992

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

11

electrical characteristics over recommended operating free-air temperature range

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = – 18 mA

– 1.5

V

VOH

VCC = 4.5 V,

IOH = – 2 mA

2.4

3.2

V

VOL

VCC = 4.5 V,

IOL = 12 mA

0.25

0.4

V

Outputs

20

I/O ports

100

Outputs

–20

I/O ports

–100

II

VCC = 5.5 V,

VI = 5.5 V

0.2

mA

I/O Ports

100

All others

25

OE input

–0.2

All others

–0.1

IOS‡

VCC = 5.5 V,

VO = 0.5 V

–30

–250

mA

ICC

VCC = 5.5 V,

VI = 0,

Outputs open

75

90

mA

timing requirements

MIN

MAX

UNIT

fclock

Clock Frequency

0

16

MHz

Clock high

25

Clock low

25

tsu

Setup time, input or feedback before CLK

↑

35

ns

th

Hold time, input or feedback after CLK

↑

0

ns

NOTE 2: The total clock period of clock high and clock low must not exceed clock frequency, fclock. The minimum pulse durations specified are

only for clock high or low, but not for both simultaneously.

switching characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

TEST CONDITION

MIN

TYP†

MAX

UNIT

fmax

16

25

MHz

tpd

I, I/O

O, I/O

25

40

ns

tpd

CLK

↑

Q

R1 = 390

Ω,

11

25

ns

ten

OE

↓

Q

R2 = 750

Ω,

20

25

ns

tdis

OE

↑

Q

See Figure 1

11

25

ns

ten

I, I/O

O, I/O

25

40

ns

tdis

I, I/O

O, I/O

25

35

ns

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

‡ Not more than one output should be shorted at a time and the duration of the short circuit should not exceed one second. Set VO at 0.5 V to avoid

test equipment degradation.