HEF4521B 查看數據表（PDF） - NXP Semiconductors.
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HEF4521B Datasheet PDF : 18 Pages
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NXP Semiconductors
HEF4521B
24-stage frequency divider and oscillator
5. Pinning information
5.1 Pinning
Fig 4. Pin configuration
HEF4521B
Q24 1
MR 2
VSS1 3
Y2 4
VDD1 5
A2 6
Y1 7
VSS 8
16 VDD
15 Q23
14 Q22
13 Q21
12 Q20
11 Q19
10 Q18
9 A1
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5.2 Pin description
Table 2. Pin description
Symbol
Pin
MR
2
VSS1
3
VDD1
5
Y1, Y2
7, 4
VSS
8
A1, A2
9, 6
Q18 to Q24
10, 11, 12, 13, 14, 15, 1
VDD
16
6. Count capacity
Description
master reset input
ground supply voltage 1
supply voltage 1
external oscillator connection
ground supply voltage
external oscillator connection
output
supply voltage
Table 3.
Output
Q18
Q19
Q20
Q21
Q22
Q23
Q24
Count capacity
Count capacity
218 = 262144
219 = 524288
220 = 1048576
221 = 2097152
222 = 4194304
223 = 8388608
224 = 16777216
HEF4521B
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 21 November 2011
© NXP B.V. 2011. All rights reserved.
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