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Part: 5962-8780501EA
Category:
Logic
-> Multivibrators/Oscillators
-> Monostable Multivibrators
Description: ti CD54HC221, High Speec CMOS Logic Dual Monostable Multivibrator With Reset
Company: Texas Instruments, Inc.
Datasheet: Download 5962-8780501EA datasheet File size : 224 kB
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Datasheet text preview:
CD54HC221, CD74HC221, CD74HCT221
Data sheet acquired from Harris Semiconductor SCHS166F
November 1997 - Revised October 2003
High-Speed CMOS Logic Dual Monostable Multivibrator with Reset
Description
The 'HC221 and CD74HCT221 are dual monostable multivibrators with reset. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RX and CX provides a wide range of output pulse widths from the Q and Q terminals. Pulse triggering on the B input occurs at a par ticular voltage level and is not related to the rise and fall time of the trigger pulse. Once triggered, the outputs are independent of further trigger inputs on A and B. The output pulse can be terminated by a LOW level on the Reset (R) pin. Trailing Edge triggering (A) and leading-edge-triggering (B) inputs are provided for triggering from either edge of the input pulse. On power up, the IC is reset. If either Mono is not used each input (on the unused device) must be terminated either high or low. The minimum value of external resistance, RX, is typically 500. The minimum value of external capacitance, CX, is 0pF. The calculation for the pulse width is tW = 0.7 RXCX at VCC = 4.5V.
Features
· Overriding RESET Terminates Output Pulse
[ /Title (CD74 HC221 , CD74 HCT22 1) /Subject (High Speed CMOS Logic Dual Monos table Multi-
· Triggering from the Leading or Trailing Edge · Q and Q Buffered Outputs · Separate Resets · Wide Range of Output-Pulse Widths · Schmitt Trigger on B Inputs · Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads · Wide Operating Temperature Range . . . -55oC to 125oC · Balanced Propagation Delay and Transition Times · Significant Power Reduction Compared to LSTTL Logic ICs · HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V · HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il 1µA at VOL, VOH
Ordering Information
PART NUMBER CD54HC221F3A CD74HC221E CD74HC221M CD74HC221MT CD74HC221M96 TEMP. RANGE (oC) -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 PACKAGE 16 Ld CERDIP 16 Ld PDIP 16 Ld SOIC 16 Ld SOIC 16 Ld SOIC 16 Ld SOP 16 Ld TSSOP 16 Ld TSSOP 16 Ld TSSOP 16 Ld PDIP 16 Ld SOIC 16 Ld SOIC 16 Ld SOIC
Pinout
CD54HC221 (CERDIP) CD74HC221 (PDIP, SOIC, SOP, TSSOP) CD74HCT221 (PDIP, SOIC) TOP VIEW
1A 1 1B 2 1R 3 1Q 4 2Q 5 2CX 6 2CXRX 7 GND 8 16 VCC 15 1CXRX 14 1CX 13 1Q 12 2Q 11 2R 10 2B 9 2A
CD74HC221NSR CD74HC221PW CD74HC221PWR CD74HC221PWT CD74HCT221E CD74HCT221M CD74HCT221MT CD74HCT221M96
NOTE: When ordering, use the entire par t number. The suffixes 96 and R denote tape and reel. The suffix T denotes a small-quantity reel of 250.
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright
© 2003, Texas Instruments Incorporated
1
CD54HC221, CD74HC221, CD74HCT221 Functional Diagram
1CX 14 1CX 1A 1 1B 2 1R 3 11 9 2A 10 2B 2CX 6 2CX 2CXRX 7 VCC 2RX MONO 2 12 2Q 5 2Q MONO 1 4 1Q 1RX VCC 15 1CXRX 13 1Q
2R
TRUTH TABLE INPUTS A H X L X L B X L H X H R H H H H L (Note 3) (Note 3) L H Q L L OUTPUTS Q H H
H = High Voltage Level, L = Low Voltage Level, X = Irrelevant, = Transition from Low to High Level, = Transition from High to Low Level, = One High Level Pulse, = One Low Level Pulse NOTE: 1. For this combination the reset input must be low and the following sequence must be used: pin 1 (or 9) must be set high or pin 2 (or 10) set low; then pin 1 (or 9) must be low and pin 2 (or 10) set high. Now the reset input goes from lowto-high and the device will be triggered.
2
CD54HC221, CD74HC221, CD74HCT221 Logic Diagram
VCC C 16 P RX
N A 1 (9) 2 (10) B 3 (11) P VCC R D RESET FF S R Q VCC MIRROR VOLTAGE QM QM MASK FF R S MAIN FF Q N PULLDOWN FF D C 4 (12) Q (13) 5 Q C R Q Q N 8 R1 R4 PP R3 C C P OP AMP R2 + R
15 (7) RXCX
CX
Q
14 (6) CX GND
VCC
+ OP AMP
3
CD54HC221, CD74HC221, CD74HCT221
Absolute Maximum Ratings
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V DC Input Diode Current, IIK For VI VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA DC Output Diode Current, IOK For VO VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±20mA DC Drain Current, per Output, IO For -0.5V -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±25mA DC VCC or Ground Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . .±50mA
Thermal Information
Package Thermal Impedance, JA (see Note 2): E (PDIP) Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67oC/W M (SOIC) Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73oC/W NS (SOP) Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64oC/W PW (TSSOP) Package . . . . . . . . . . . . . . . . . . . . . . . . . 108oC/W Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC (SOIC - Lead Tips Only)
Operating Conditions
Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC Supply Voltage Range, VCC HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to VCC Input Rise and Fall Time, tr, tf on Inputs A and R 2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max) Input Rise and Fall Time, tr, tf on Input B 2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited ns (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited ns (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited ns (Max)
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE: 2. The package thermal impedance is calculated in accordance with JESD 51-7.
DC Electrical Specifications
TEST CONDITIONS PARAMETER HC TYPES High Level Input Voltage VIH 2 4.5 6 Low Level Input Voltage VIL 2 4.5 6 High Level Output Voltage CMOS Loads High Level Output Voltage TTL Loads Low Level Output Voltage CMOS Loads Low Level Output Voltage TTL Loads VOL VIH or VIL VOH VIH or VIL -0.02 -0.02 -0.02 -4 -5.2 0.02 0.02 0.02 4 5.2 2 4.5 6 4.5 6 2 4.5 6 4.5 6 1.5 3.15 4.2 1.9 4.4 5.9 3.98 5.48 0.5 1.35 1.8 0.1 0.1 0.1 0.26 0.26 1.5 3.15 4.2 1.9 4.4 5.9 3.84 5.34 0.5 1.35 1.8 0.1 0.1 0.1 0.33 0.33 1.5 3.15 4.2 1.9 4.4 5.9 3.7 5.2 0.5 1.35 1.8 0.1 0.1 0.1 0.4 0.4 V V V V V V V V V V V V V V V V V V SYMBOL VI (V) IO (mA) VCC (V) 25oC MIN TYP MAX -40oC TO 85oC -55oC TO 125oC MIN MAX MIN MAX UNITS
4
CD54HC221, CD74HC221, CD74HCT221
DC Electrical Specifications (Continued)
TEST CONDITIONS PARAMETER Input Leakage Current Quiescent Device Current HCT TYPES High Level Input Voltage Low Level Input Voltage High Level Output Voltage CMOS Loads High Level Output Voltage TTL Loads Low Level Output Voltage CMOS Loads Low Level Output Voltage TTL Loads Input Leakage Current Quiescent Device Current Additional Quiescent Device Current Per Input Pin: 1 Unit Load NOTE: 3. For dual-supply systems theoretical worst case (VI = 2.4V, VCC = 5.5V) specification is 1.8mA. II ICC ICC (Note 3) VCC and GND VCC or GND VCC -2.1 VOL VIH or VIL VIH VIL VOH VIH or VIL -0.02 4.5 to 5.5 4.5 to 5.5 4.5 2 4.4 0.8 2 4.4 0.8 2 4.4 0.8 V V V SYMBOL II ICC VI (V) VCC or GND VCC or GND IO (mA) 0 VCC (V) 6 6 25oC MIN TYP MAX ±0.1 8 -40oC TO 85oC -55oC TO 125oC MIN MAX ±1 80 MIN MAX ±1 160 UNITS µA µA
-4
4.5
3.98
-
-
3.84
-
3.7
-
V
0.02
4.5
-
-
0.1
-
0.1
-
0.1
V
4
4.5
-
-
0.26
-
0.33
-
0.4
V
0 0 -
5.5 5.5 4.5 to 5.5
100
±0.1 8 360
-
±1 80 450
-
±1 160 490
µA µA µA
HCT Input Loading Table
INPUT All Inputs UNIT LOADS 0.3
NOTE: Unit Load is ICC limit specified in DC Electrical Table, e.g., 360µA max at 25oC.
Prerequisite For Switching Function
25oC PARAMETER HC TYPES Input Pulse Width A tWL 2 4.5 6 Input Pulse Width B tWH 2 4.5 6 70 14 12 70 14 12 90 18 15 90 18 15 105 21 18 105 21 18 ns ns ns ns ns ns SYMBOL VCC (V) MIN TYP MAX -40oC TO 85oC MIN MAX -55oC TO 125oC MIN MAX UNITS
5
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