HEF4521BT NXP Semiconductors, HEF4521BT Datasheet - Page 9

• Manufacturer Part Number: HEF4521BT
• Description: IC, 4000 LOCMOS, SMD, 4521, SOIC16
• Manufacturer: NXP Semiconductors

Specifications of HEF4521BT

• Clock Frequency: 35MHz
• Count Maximum: 24
• Supply Voltage Range: 4.5V To 15.5V
• Logic Case Style: SOIC
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Package /: RoHS Compliant
• Base Number: 4521
• Rohs Compliant: Yes

Philips Semiconductors
January 1995
24-stage frequency divider and oscillator
Fig.7
f
R
S
----------------------------------- - ; R
2,3 R
+
R
RC oscillator circuit;
f in Hz, R in , C in F.
TC
1
9
TC
V
----------------- -
IL max
I
LI
C
S
2 R
maximum input voltage LOW
input leakage current
TC
Fig.8
in which:
C; R
R
Oscillator frequency as a
function of R
V
Fig.7.
TC
DD
; C = 1 nF; R
TC
= 10 V; test circuit is
= 56 k ; R
Product specification
S
TC
S
HEF4521B
= 120 k
2 R
and C;
TC
MSI