74LVC169EVB NXP Semiconductors, 74LVC169EVB Datasheet - Page 6

• Manufacturer Part Number: 74LVC169EVB
• Description: BOARD EVALUATION FOR 74LVC169
• Manufacturer: NXP Semiconductors

Specifications of 74LVC169EVB

• Main Purpose: Logic, Binary Counter
• Embedded: No
• Utilized Ic / Part: 74LVC169
• Primary Attributes: 1.2 V ~ 3.6 V Input Voltage
• Secondary Attributes: Built-in look-ahead carry capability
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-5082

NXP Semiconductors
6. Functional description
Table 3.
[1]
74LVC169_5
Product data sheet
Operating modes
Parallel load (Dn to Qn)
Count up (increment)
Count down (decrement)
Hold (do nothing)
Fig 6.
H = HIGH voltage level steady state
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH clock transition
L = LOW voltage level steady state
l = LOW voltage level one set-up time prior to the LOW-to-HIGH clock transition
qn = Lower case letters indicate state of referenced output prior to the LOW-to-HIGH clock transition
X = don’t care
* = The TC is LOW when CET is LOW and the counter is at terminal count
Terminal count up is (HHHH) and terminal count down is (LLLL)
= LOW-to-HIGH clock transition
State diagram
Function table
[1]
Input
CP
U/D
X
X
h
I
X
X
15
14
13
12
0
Rev. 05 — 8 June 2009
count down
count up
CEP
X
X
I
I
h
X
11
1
Presettable synchronous 4-bit up/down binary counter
10
2
CET
X
X
I
I
X
X
3
9
001aaa647
4
5
6
7
8
PE
I
l
h
h
h
h
Dn
I
h
X
X
X
X
Output
Qn
L
H
count up
count down
qn
qn
74LVC169
© NXP B.V. 2009. All rights reserved.
TC
*
*
*
*
*
H
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