HEF4541BP データシートの表示（PDF） - NXP Semiconductors.
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HEF4541BP Datasheet PDF : 17 Pages
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NXP Semiconductors
HEF4541B
Programmable timer
10. Dynamic characteristics
Table 9. Dynamic characteristics
VSS = 0 V; Tamb = 25 °C unless otherwise specified. For test circuit, see Figure 5.
Symbol Parameter
Conditions
VDD
Extrapolation formula Min
tpd
propagation delay RS to O;
5 V [2] 348 ns + (0.55 ns/pF)CL -
28 selected;
see Figure 4
10 V
139 ns + (0.23 ns/pF)CL -
15 V
102 ns + (0.16 ns/pF)CL -
RS to O;
210 selected;
see Figure 4
5V
10 V
15 V
398 ns + (0.55 ns/pF)CL -
154 ns + (0.23 ns/pF)CL -
112 ns + (0.16 ns/pF)CL -
RS to O;
213 selected;
see Figure 4
5V
10 V
15 V
483 ns + (0.55 ns/pF)CL -
179 ns + (0.23 ns/pF)CL -
127 ns + (0.16 ns/pF)CL -
RS to O;
216 selected;
see Figure 4
5V
10 V
15 V
548 ns + (0.55 ns/pF)CL -
199 ns + (0.23 ns/pF)CL -
142 ns + (0.16 ns/pF)CL -
tW
pulse width
RS LOW;
5 V [3]
60
MR HIGH;
10 V
30
see Figure 4
15 V
24
fclk(max) maximum clock
RS; see Figure 4 5 V
8
frequency
10 V
15
15 V
18
fosc
oscillator frequency Rt = 5 kΩ;
5V
-
Ct = 1 nF;
10 V
-
RS = 10 kΩ;
see Figure 6
15 V
-
Rt = 56 kΩ;
5V
-
Ct = 1 nF;
10 V
-
RS = 120 kΩ;
see Figure 6
15 V
-
Typ[1]
375
150
110
425
165
120
510
190
135
575
210
150
30
15
12
16
30
36
90
90
90
Max
750
300
220
850
330
240
1020
380
270
1150
420
300
-
-
-
-
-
-
-
-
-
8-
8-
8-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
kHz
kHz
kHz
kHz
kHz
kHz
[1] The typical values of the propagation delay and transition times are calculated from the extrapolation formulas shown (CL in pF).
[2] tpd is the same as tPHL and tPLH.
[3] tW is the same as tWL(min) and tWH(min).
HEF4541B
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 25 June 2012
© NXP B.V. 2012. All rights reserved.
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