SN74AS1821 Datasheet, PDF (3/5 Pages) Texas Instruments – 10-BIT BUS INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS

SN74AS1821
10ĆBIT BUS INTERFACE FLIPĆFLOPS WITH 3ĆSTATE OUTPUTS
SDAS131 − APRIL 1987
absolute maximum ratings over operating free-air temperature range (uness otherwise noted)
Supply voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
recommended operating conditions
VCC
VIH
VIL
VOH
IOL
tw
tsu
th
TA
Supply Voltage
High-level input voitage
Low-level input voltage
High-level output current
Low-level output current
Pulse duration, CLK high or low
Setup time, data before CLK↑
Hold time, data after CLK↑
Operating free-air temperature
MIN NOM MAX UNIT
4.5
5 5.5 V
2
V
0.8 V
−24 mA
48 mA
8
ns
6
ns
0
ns
0
70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP† MAX UNIT
VIK
VOH
VOL
IOZH
IOZL
II
IIH
IL
IO‡
VCC = 4.5 V
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
II = −18 mA
IOH = −2mA
IOH = −15 mA
IOH = −24 mA
IOL = 32 mA
IOL = 48 mA
VO = 2.7 V
VO = 0.4 V
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
Outputs high
−1.2 V
VCC−2
2.4 3.2
V
2
V
0.35 0.5
50 µA
−50 µA
0.1 mA
20 µA
0.5 mA
−30
−112 mA
55
88
ICC
VCC 5.5 V
Outputs low
Outputs disabled
68
09 mA
70 113
† _{All typical values are at VCC = 5 V, TA = 25°C.}
‡ _{The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I[OS]}
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3