74HC191PW,112 NXP Semiconductors, 74HC191PW,112 Datasheet - Page 5

• Manufacturer Part Number: 74HC191PW,112
• Description: IC 4BIT BINARY UP/DN CNT 16TSSOP
• Manufacturer: NXP Semiconductors
• Series: 74HCr

Specifications of 74HC191PW,112

• Package / Case: 16-TSSOP
• Logic Type: Binary Counter
• Direction: Up, Down
• Number Of Elements: 1
• Number Of Bits Per Element: 4
• Timing: Synchronous
• Count Rate: 39MHz
• Trigger Type: Positive Edge
• Voltage - Supply: 2 V ~ 6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Mounting Style: SMD/SMT
• Dc: 11+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Reset: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 74HC191PW; 74HC191PW; 935188370112

Philips Semiconductors
FUNCTION TABLE
TC AND RC FUNCTION TABLE
Notes
1. H = HIGH voltage level
December 1990
parallel load
count up
count down
hold (do nothing)
Presettable synchronous 4-bit binary
up/down counter
L = LOW voltage level
I
X = don’t care
U/D
H
H
H
L
L
L
= LOW-to-HIGH CP transition
= LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition
OPERATING MODE
= one LOW level pulse
= TC goes LOW on a LOW-to-HIGH CP transition
INPUTS
CE
H
H
H
H
L
L
CP
X
X
X
X
Q
PL
H
H
H
H
H
H
L
L
L
L
L
0
Fig.4 Functional diagram.
TERMINAL COUNT STATE
U/D
X
X
H
X
L
Q
H
H
H
L
L
L
5
1
INPUTS
CE
X
X
H
I
I
Q
H
H
H
L
L
L
2
CP
X
X
X
Q
H
H
H
L
L
L
D
3
H
X
X
X
L
n
74HC/HCT191
OUTPUTS
Q
L
H
count up
count down
no change
n
TC
Product specification
H
H
L
L
OUTPUTS
RC
H
H
H
H