74f569 NXP Semiconductors, 74f569 Datasheet - Page 2

• Manufacturer Part Number: 74f569
• Description: 4-bit Bidirectional Binary Synchronous Counter 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
DESCRIPTION
The 74F569 is a fully synchronous Up/Down binary counter. It
features preset capabilities for programmable operation, carry look
ahead for programmable operation, carry look ahead for easy
cascading, and U/D input to control the direction of counting. For
maximum flexibility there are both Synchronous and Master Reset
inputs as well as both Clocked Carry (CC) and Terminal Count (TC)
outputs. All state changes except Master Reset are initiated by
rising edge of the clock. A High signal on the Output Enable (OE)
input forces the output buffers into the high impedance state but
does not prevent counting, resetting or parallel loading.
LOGIC SYMBOL
1996 Jan 05
4-bit bidirectional counting – binary counter
Synchronous counting and loading
Look ahead carry capability for easy cascading
Preset capability for programmable operation
Master Reset (MR) overrides all other inputs
Synchronous Reset (SR) overrides counting and parallel loading
Clock Carry (CC) output to be used as a clock for flip-flops,
register and counters
3-State outputs for bus organized systems
4-bit bidirectional binary synchronous counter (3-State)
V
GND = Pin 10
CC
= Pin 20
12
17
11
2
7
8
9
1
PE
U/D
CP
CEP
CET
MR
SR
OE
D
Q
16
3
0
0
Q
D
15
4
1
1
Q
D
14
5
2
2
D
Q
13
6
3
3
CC
TC
SF01056
18
19
2
PIN CONFIGURATION
ORDERING INFORMATION
LOGIC SYMBOL (IEEE/IEC)
20-pin plastic DIP
20-pin plastic SO
DESCRIPTION
74F569
TYPE
17
1
2
12
7
9
11
8
3
4
5
6
GND
CEP
U/D
TYPICAL f
MR
CP
SR
D0
D1
D2
D3
115MHz
10
EN10
M1[UP]
M2[DOWN]
Z6
G7
G8
5CT=0
M3[LOAD]
M4[COUNT]
CT=0
1
2
3
4
5
6
7
8
9
3,5D
COMMERCIAL RANGE
C5/1,4,7,8+/2,4,7,8–
T
amb
V
ORDER CODE
CTR DIV 10
MAX
CC
N74F569N
N74F569D
= 0 C to +70 C
= 5V 10%,
1,7(CT=15)G9
2,7(CT=0)G9
SF01072
20
19
18
17
16
15
14
13
12
11
6,7,8,9
10
SUPPLY CURRENT
VCC
TC
CC
OE
Q0
Q1
Q2
Q3
CET
PE
Product specification
TYPICAL
(TOTAL)
SF01057
18
19
853–0376 16193
40mA
74F569
16
15
14
13
SOT146-1
SOT163-1
DWG. #
PKG.