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TC4521BP
24-STAGE FREQUENCY DIVIDER
TOSHIBA
TC4521BP
TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TC4521“?
TC4521BP 24-STAGE FREQUENCY DIVIDER
TC4521BP is frequency divider consisting of 24 stages of flip-
flop. The input section is equipped with an inverter to enable
to use either RC oscillator circuit or crystal oscillator circuit
and to accept pulse from external clock source.
Each flip-flop is inverted by the falling edge of the output of
previous stage flip-flop and this can count up to the
maximum of 224=16,777,216.
Since six outputs, 218, 219, 220, 221, 222, and 223 are available
besides of 224, adjustment of frequency divided output can be
achieved.
MAXIMUM RATINGS
P (DIP16-P-300-2.54A)
Weight: 1.00g (Typ.)
PIN ASSIGNMENT
Q241 L V Cl 16
RESET 2 E Cl 15
V552 3 L J14
OUT2 4 L Cl 13
VDDZ 5 L Cl 12
1N2 6 L Cl 11
OUT17 E 310
V5518 L 19
(TOP VIEW)
COUNT CAPACITY
CHARACTERISTIC SYMBOL RATING UNIT
V 1 V 1 -0.5--V 1 + 20
DC Supply Voltage DD ss ss V
VDDZ I/ssl - 0-5~VDD1 + 0.5
Input Voltage l/m Vss1-0.r-Vool+0.5 V
Output Voltage VOUT I/ssl -th5--Voo1 +0.5
DC Input Current IIN i 10 mA
Power Dissipation PD 300 mW
Operating - -- o
Temperature Range Topr 40 85 C
Storage Temperature - ' 0
BLOCK DIAGRAM
OUT1 IN2 VDDZ OUT2
7 6 5 4
RESET '
9 L STAGES
lhll l/C 1--17
3 (STATIC)
Vss2 -
STAGES 18-24
(STATIC)
10 11 12 13
Q18 Q19 Q20 Q21
14 15 1
Q22 Q23 Q24
OUTPUT COUNT CAPACITY
Q18 218= 262,144
Q19 219 = 524,288
Q20 220 = 1,048,576
Q21 221= 2,097,152
Q22 222 = 4,194,304
Q23 223 = 8,388,608
Q24 224 = 16,777,216
TOSHIBA TC4521BP
LOGIC DIAGRAM
OUT1 IN2 vDDz OUT2 VDD1 I/ssl
7 6 5 4 16' Il-s,
WIH; I I
RESET 2 {>c . —>¢
IN1 si,','',',",":).,-,,,,,.:)
Vssil 3 Dc
s' I I I I I I f I
Ft, Ft, A, Ft, A, A, Ft, Ft,
"Q T Q T Q T Q T Q T Q T Q T Q T
t - - - - - - -
fb T Q T Q T Q T Q T Q T Q T Q T o<}
I I I I T I I I
_Ft _rt _E _R _Ft _Ft _Ft _E
-T Q T Q T Q T Q T Q T Q T Q Q (
-T Q T Q T c: T Q T Q T Q T Q T V5
I I I I I I I I ff
R_ R_ R_ R_ R_ R_ R_ R_
--Q Q T Q T Q T Q T Q T Q T Q T
I - - - - - - -
s' T Q T Q T Q T Q T Q T Q T Q T o<}
1 15 14 13 12 11 10
Q24 Q23 Q22 Q21 Q20 Q19 Q18
INTERNAL FLIP FLOP LOGIC DIAGRAM FLIP FLOP TIMING CHART
Ft I I Ft _I
T c(Dr- T -FllllllllL-
, I I o
T I I "fr-ic- Q l I I-L.
i T T i a I I cl-
2 2001-05-17
TOSHIBA TC4521BP
RECOMMENDED OPERATING CONDITIONS (Vss1=Vss2=0V)
CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
DC Supply Voltage VDD1IVDD2 3 - 18 V
Input Voltage VIN 0 - VDD1 V
STATIC ELECTRICAL CHARACTERISTICS (vss1 = Vss2 = ov, VDD1 = VDDZ)
SYM- - 40°C 25°C 85°C
CHARACTERISTIC BOL TEST CONDITION VDD UNIT
(V) MIN. MAX. MIN. TYP. MAX. MIN. MAX.
. 5 4.95 - 4.95 5.00 - 4.95 -
'ift",e1()1ta e l/or, U0”: IV“? 10 9.95 - 9.95 10.00 - 9.95 -
p g pl- ss, DD 15 14.95 - 14.95 15.00 - 14.95 - v
5 - 0.05 - 0.00 0.05 - 0.05
avr'tetvsglta e VOL IVIOUIIVQ/QA 10 - 0.05 - 0.00 0.05 - 0.05
p g IN- ss, DD 15 - 0.05 - 0.00 0.05 - 0.05
vOH = 4.6V 5 -0.61 - -0.51 - 1.0 - -0.42 -
. VOH= 2.5V 5 -2.5 - -2.1 -4.0 - - 1.7 -
tet High lor, VOH= 9.5V 10 - 1.5 - - 1.3 -2.2 - - 1.1 -
u VOH=13.5V 15 -4.0 - -3.4 -9.0 - -2.8 -
VIN =Vss, VDD
V0L=0.4V 5 0.61 - 0.51 1.2 - 0.42 -
Output Low I VOL=0.5V 10 1.5 - 1.3 3.2 - 1.1 -
Current OL vOL =1.5V 15 4.0 - 3.4 12.0 - 2.8 -
VIN =Vss, VDD
VOUT=0.5V, 4.5V 5 3.5 - 3.5 2.75 - 3.5 -
Input High v VOUT=1.0V, 9.0V 10 7.0 - 7.0 5.5 - 7.0 -
Voltage IH VOUT=1.5V, 13.5V 15 11.0 - 11.0 8.25 - 11.0 -
I IOUTI
VOUT=0.5V, 4.5V 5 - 1.5 - 2.25 1.5 - 1.5
Input Low v VOUT=1.OV, 9.0V 10 - 3.0 - 4.5 3.0 - 3.0
Voltage IL VOUT=1.5V, 13.5V 15 - 4.0 - 6.75 4.0 - 4.0
I IOUTI Input "H" Level v, VIH =18V 18 - 0.1 - 10-5 0.1 - 1.0
Current "L'' Level 1.L v.L=0v 18 - -0.1 - -IO-5 -0.1 - - 1.0
. 5 - 5 - 0.005 5 - 150 pA
[ttJr" Supply lDD V|N=Vss, VDD * 10 - 10 - 0.010 10 - 300
u 15 - 20 - 0.015 20 - 600
* All valid input combinations.
TOSHIBA TC4521BP
DYNAMIC ELECTRICAL CHARACTERISTICS (Ta = 25°C, Vssl = Vss2 = 0V, VDD1 = VDDZ, CL = 50pF)
CHARACTERISTIC SYMBOL TEST CONDITION VDD(V) MIN. TYP. MAX. UNIT
Output Transition Time 5 0 00
(Low to High) tTLH 10 - 35 100
15 - 3O 80
5 70 200 ns
Output Transition Time -
. tTHL 10 - 35 100
(High to Low) 15 - 30 80
Propagation Delay Time “(FM 1: - 3; :2
(IN2-Q18) tpHL 15 - trs" 2'7
5 1.4 1.2 /e;
Propagation Delay Time tpLH 10 - 0.6 4 5
(IN2 - Q24) tPHL 15 - 0'4 3'5
. . 5 - 220 2600
Propagation Delay Time tpHL 10 - 100 1000 ns
(RESET-tln) 15 - 70 750
5 3 9.5 -
Max. Clock Frequency fCL 10 6 17.5 - MHz
15 8 23.5 -
Max. Clock Input Rise Time trCL 1: . . s
Max. Clock Input Fall Time thL 15 No Limit '
5 - 55 385
Min. Clock Pulse Width tw 10 - 25 150
15 - 16 120
5 60 385 ns
Min. Pulse Width -
tWH 10 - 26 150
(RESET) 15 - 20 120
Input Capacitance Ce: - 5 7.5 pF
4 2001-05-17
TOSHIBA
TC4521BP
WAVEFORM FOR MEASUREMENT OF DYNAMIC CHARACTERISTICS
20ns 20ns
90% S 90%
INI / N 50% t'"
-a 10% tl
20ns 20ns
Z 90% 90%
RESET 2 50% 50%
10% :10%
tTHL tTLH ‘—)
Qn 50% 50%
tpLH , tPHL
APPLICATION CIRCUIT
* When CR oscillation is used as time reference
l 1 Rs Rs EZRT
RESET o-2 5 16 9-o-"vN-
3 i7,CD-oc,- fosc 2.2RT Ch
8 101112 1314 15 1 4 to E”
Q18 Q24
* When crystal oscillation circuit is used as the time reference
Typicaldata
J X'tal (Hz) Q, Co (pF) Ro (fl)
RESET o-2 5 16 9 32.768k 23 500k
3 7-o 100k 60 100k
4-'-R,,
8 101112 1314 151 6 t) I CIF-a feb IM 45-50 100
l l J) i i l l c, ii' - co 4.194304M 12--15 0
Q18 Q24 I J
Rf=10MQ
TOSHIBA TC4521BP
DIP 16PlN PACKAGE DIMENSIONS (DlN6-P-300-2.54A) Unit in mm
6.4i0.2
yr--'"-'''"'-''-'",-)
19.75MAX
19dyH0.2
0.735TYP i,'
-----. _
Weight: 1.009 (Typ.)
6 2001-05-17
TOSHIBA TC4521BP
RESTRICTIONS ON PRODUCT USE
000707EBA
OTOSHIBA is continually working to improve the quality and reliability of its products.
Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent
electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer,
when utilizing TOSHIBA products, to comply with the standards of safety in making a safe
design for the entire system, and to avoid situations in which a malfunction or failure of such
TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please
keep in mind the precautions and conditions set forth in the "Handling Guide for
Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc..
OThe TOSHIBA products listed in this document are intended for usage in general electronics
applications (computer, personal equipment, office equipment, measuring equipment, industrial
robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor
warranted for usage in equipment that requires extraordinarily high quality and/or reliability or
a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended
Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship
instruments, transportation instruments, traffic signal instruments, combustion control
instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA
products listed in this document shall be made at the customer's own risk.
0 The products described in this document are subject to the foreign exchange and foreign trade
OThe information contained herein is presented only as a guide for the applications of our
products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of
intellectual property or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any intellectual property or other rights of
TOSHIBA CORPORATION or others.
0 The information contained herein is subject to change without notice.
7 2001-05-17
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