7493

DM5490 NSC | Alldatasheet

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Y Typical power dissipation Ð 90A 145 mW Ð 93A 130 mW Y Count frequency 42 MHz Connection Diagrams Dual-In-Line Package TL/F/6533–1 Order Number DM5490J, DM5490W or DM7490AN See NS Package Number J14A, N14A or W14B Dual-In-Line Package TL/F/6533–2 Order Number DM7493AN See NS Package Number N14A C1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

Absolute Maximum Ratings (Note) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage 7V Input Voltage 5.5V Operating Free Air Temperature Range DM54 b55§Ct o a125§C DM74 0 §Ct o a70§C Storage Temperature Range b65§Ct o a150§C Note: The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaran- teed. The device should not be operated at these limits. The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings. The ‘‘Recommended Operating Conditions’’ table will define the conditions for actual device operation. Recommended Operating Conditions Symbol Parameter DM5490 DM7490A Units Min Nom Max Min Nom Max VCC Supply Voltage 4.5 5 5.5 4.75 5 5.25 V VIH High Level Input Voltage 2 2 V VIL Low Level Input Voltage 0.8 0.8 V IOH High Level Output Current b0.8 b0.8 mA IOL Low Level Output Current 16 16 mA fCLK Clock Frequency A 0 32 0 32 MHz(Note 5) B 0 16 0 16 tW Pulse Width A 15 15 (Note 5) B3 0 3 0 n s Reset 15 15 tREL Reset Release Time (Note 5) 25 25 ns TA Free Air Operating Temperature b55 125 0 70 §C ’90A Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units(Note 1) VI Input Clamp Voltage V CC e Min, I I eb 12 mA b1.5 V VOH High Level Output V CC e Min, I OH e Max 2.4 3.4 VVoltage V IL e Max, V IH e Min VOL Low Level Output V CC e Min, I OL e Max 0.2 0.4 VVoltage V IH e Min, V IL e Max (Note 4) II Input Current @ Max V CC e Max, V I e 5.5V 1m AInput Voltage IIH High Level Input V CC e Max A 80 Current V I e 2.7V Reset 40 mA B 120 IIL Low Level Input V CC e Max A b3.2 Current V I e 0.4V Reset b1.6 mA B b4.8 IOS Short Circuit V CC e Max DM54 b20 b57 mAOutput Current (Note 2) DM74 b18 b57 ICC Supply Current V CC e Max (Note 3) 29 42 mA Note 1: All typicals are at V CC e 5V, T A e 25§C. Note 2: Not more than one output should be shorted at a time. Note 3: ICC is measured with all outputs open, both RO inputs grounded following momentary connection to 4.5V, and all other inputs grounded. Note 4: QA outputs are tested at I OL e Max plus the limit value of I IL for the B input. This permits driving the B input while maintaining full fan-out capability. Note 5: TA e 25§C and V CC e 5V.

’90A Switching Characteristics at V CC e 5V and T A e 25§C (See Section 1 for Test Waveforms and Output Load) From (Input) RL e 400X Symbol Parameter To (Output) CL e 15 pF Units Min Max fMAX Maximum Clock A to Q A 32 MHzFrequency Bt oQ B 16 tPLH Propagation Delay Time At oQ A 16 nsLow to High Level Output tPHL Propagation Delay Time At oQ A 18 nsHigh to Low Level Output tPLH Propagation Delay Time At oQ D 48 nsLow to High Level Output tPHL Propagation Delay Time At oQ D 50 nsHigh to Low Level Output tPLH Propagation Delay Time Bt oQ B 16 nsLow to High Level Output tPHL Propagation Delay Time Bt oQ B 21 nsHigh to Low Level Output tPLH Propagation Delay Time Bt oQ C 32 nsLow to High Level Output tPHL Propagation Delay Time Bt oQ C 35 nsHigh to Low Level Output tPLH Propagation Delay Time Bt oQ D 32 nsLow to High Level Output tPHL Propagation Delay Time Bt oQ D 35 nsHigh to Low Level Output tPLH Propagation Delay Time SET-9 to 30 nsLow to High Level Output Q A,Q D tPHL Propagation Delay Time SET-9 to 40 nsHigh to Low Level Output Q B,Q C tPHL Propagation Delay Time SET-0 40 nsHigh to Low Level Output Any Q

Recommended Operating Conditions Symbol Parameter DM7493A Units Min Nom Max VCC Supply Voltage 4.75 5 5.25 V VIH High Level Input Voltage 2 V VIL Low Level Input Voltage 0.8 V IOH High Level Output Current b0.8 mA IOL Low Level Output Current 16 mA fCLK Clock Frequency A 0 32 MHz(Note 5) B0 1 6 tW Pulse Width A 15 (Note 5) B3 0 n s Reset 15 tREL Reset Release Time (Note 5) 25 ns TA Free Air Operating Temperature 0 70 §C ’93A Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units(Note 1) VI Input Clamp Voltage V CC e Min, I I eb 12 mA b1.5 V VOH High Level Output V CC e Min, I OH e Max 2.4 3.4 VVoltage V IL e Max, V IH e Min VOL Low Level Output V CC e Min, I OL e Max 0.2 0.4 VVoltage V IH e Min, V IL e Max (Note 4) II Input Current @ Max V CC e Max, V I e 5.5V 1m AInput Voltage IIH High Level Input V CC e Max Reset 40 Current V I e 2.4V A8 0 mA B8 0 IIL Low Level Input V CC e Max Reset b1.6 Current V I e 0.4V A b3.2 mA B b3.2 IOS Short Circuit V CC e Max b18 b57 mAOutput Current (Note 2) ICC Supply Current V CC e Max (Note 3) 26 39 mA Note 1: All typicals are at V CC e 5V, T A e 25§C. Note 2: Not more than one output should be shorted at a time. Note 3: ICC is measured with all outputs open, both R0 inputs grounded following momentary connection to 4.5V and all other inputs grounded. Note 4: QA outputs are tested at I OL e Max plus the limit value of I IL for the B input. This permits driving the B input while maintaining full fan-out capability. Note 5: TA e 25§C and V CC e 5V.

’93A Switching Characteristics at V CC e 5V and T A e 25§C (See Section 1 for Test Waveforms and Output Load) From (Input) RL e 400X Symbol Parameter To (Output) CL e 15 pF Units Min Max fMAX Maximum Clock A to Q A 32 MHz Frequency Bt oQ B 16 tPLH Propagation Delay Time A to 16 nsLow to High Level Output Q A tPHL Propagation Delay Time A to 18 nsHigh to Low Level Output Q A tPLH Propagation Delay Time A to 70 nsLow to High Level Output Q D tPHL Propagation Delay Time A to 70 nsHigh to Low Level Output Q D tPLH Propagation Delay Time B to 16 nsLow to High Level Output Q B tPHL Propagation Delay Time B to 21 nsHigh to Low Level Output Q B tPLH Propagation Delay Time B to 32 nsLow to High Level Output Q C tPHL Propagation Delay Time B to 35 nsHigh to Low Level Output Q C tPLH Propagation Delay Time B to 51 nsLow to High Level Output Q D tPHL Propagation Delay Time B to 51 nsHigh to Low Level Output Q D tPHL Propagation Delay Time SET-0 High to Low Level Output to 40 ns Any Q

Function Tables (Note D) 90A BCD Count Sequence (See Note A) Count Outputs QD QC QB QA 0L L L L 1L L L H 2L L H L 3L L H H 4L H L L 5L H L H 6L H H L 7L H H H 8H L L L 9H L L H 90A BCD Bi-Quinary (5-2) (See Note B) Count Outputs QA QD QC QB

0 LLLL

1 LLLH

4 LHLL

7 HLHL

8 HLHH

(See Note C) Count Outputs QD QC QB QA 0L L L L 1L L L H 2L L H L 3L L H H 4L H L L 5L H L H 6L H H L 7L H H H 8H L L L 9H L L H

10 H L H L

11 H L H H

12 H H L L

13 H H L H

14 H H H L

15 H H H H

Reset/Count Function Table Reset Inputs Outputs R0(1) R0(2) R9(1) R9(2) Q D QC QB QA HHL X L L L L HHX L L L L L XXHH H L L H X L X L COUNT L X L X COUNT L X X L COUNT X L L X COUNT 93A Reset/Count Function Table Reset Inputs Outputs R0(1) R0(2) Q D QC QB QA HH L L L L L X COUNT X L COUNT Note A: Output Q A is connected to input B for BCD count. Note B: Output Q D is connected to input A for bi-quinary count. Note C: Output Q A is connected to input B. Note D: H e High Level, L e Low Level, X e Don’t Care.

TL/F/6533–3 93A TL/F/6533–4 The J and K inputs shown without connection are for reference only and are functionally at a high level.

Physical Dimensions inches (millimeters) 14-Lead Ceramic Dual-In-Line Package (J) Order Number DM5490J 14-Lead Molded Dual-In-Line Package (N) Order Number DM7490AN or DM7493AN

DM5490/DM7490A, DM7493A Decade and Binary Counters Physical Dimensions inches (millimeters) (Continued) 14-Lead Ceramic Flat Package (W) Order Number DM5490W LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant support device or system whose failure to perform can into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness. be reasonably expected to result in a significant injury to the user. National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Hong Kong Ltd. Japan Ltd.

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