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HCF40193B 数据表(PDF) 1 Page - STMicroelectronics |
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HCF40193B 数据表(HTML) 1 Page - STMicroelectronics |
1 / 12 page 1/12 September 2002 s INDIVIDUAL CLOCK LINES FOR COUNTING UP OR COUNTING DOWN s SYNCHRONOUS HIGH-SPEED CARRY AND BORROW PROPAGATION DELAYS FOR CASCADING s ASYNCHRONOUS RESET AND PRESET CAPABILITY s MEDIUM-SPEED OPERATION - fCL = 8MHz (typ.) AT 10 V s STANDARDIZED SYMMETRICAL OUTPUT CHARACTERISTICS s QUIESCENT CURRENT SPECIF. UP TO 20V s 5V, 10V AND 15V PARAMETRIC RATINGS s INPUT LEAKAGE CURRENT II = 100nA (MAX) AT VDD = 18V TA = 25°C s 100% TESTED FOR QUIESCENT CURRENT s MEETS ALL REQUIREMENTS OF JEDEC JESD13B "STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES" DESCRIPTION HCF40193B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. HCF40193B Presettable Binary Up/Down Counter consists of 4 synchronously clocked, GATED "D" type flip-flops connected as a counter. The inputs consist of four individual jam lines, a PRESET ENABLE control, individual CLOCK UP and CLOCK DOWN signals and a master RESET. Four buffered Q signal outputs as well as CARRY and BORROW outputs for multiple-stage counting schemes are provided. The counter is cleared so that all outputs are in a low state by a high on the RESET line. A RESET is accomplished asynchronously with the clock. Each output is individually programmable asynchronously with the clock to the level on the corresponding jam input when the PRESET ENABLE control is low. The counter counts up one count on the positive clock edge of the CLOCK UP signal provided the CLOCK DOWN line is high. The counter counts down one count on the positive clock edge of the CLOCK DOWN signal provided the CLOCK UP line is high. The CARRY and BORROW signals are high when the counter counts up or down. The CARRY signal goes low one-half clock cycle after the counter reaches its maximum count in the count-up mode. The BORROW signal goes low HCF40193B PRESETTABLE UP/DOWN COUNTERS (DUAL CLOCK WITH RESET) BINARY TYPE PIN CONNECTION ORDER CODES PACKAGE TUBE T & R DIP HCF40193BEY SOP HCF40193BM1 HCF40193M013TR DIP SOP |
类似零件编号 - HCF40193B |
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类似说明 - HCF40193B |
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