器件名称: MC100E137FN
功能描述: 8-BIT RIPPLE COUNTER
文件大小: 117.44KB 共5页
简 介:MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
8Bit Ripple Counter
The MC10E/100E137 is a very high speed binary ripple counter. The two least significant bits were designed with very fast edge rates while the more significant bits maintain standard ECLinPS output edge rates. This allows the counter to operate at very high frequencies while maintaining a moderate power dissipation level.
MC10E137 MC100E137
8-BIT RIPPLE COUNTER
1.8GHz Minimum Count Frequency Differential Clock Input and Data Output Pins VBB Output for Single-Ended Use Internal 75k Input Pulldown Resistors Synchronous and Asynchronous Enable Pins Asynchronous Master Reset Extended 100E VEE Range of –4.2V to –5.46V
The device is ideally suited for multiple frequency clock generation as well as a counter in a high performance ATE time measurement board. Both asynchronous and synchronous enables are available to maximize the device’s flexibility for various applications. The asynchronous enable input, A_Start, when asserted enables the counter FN SUFFIX while overriding any synchronous enable signals. The E137 features PLASTIC PACKAGE XORed enable inputs, EN1 and EN2, which are synchronous to the CLK CASE 776-02 input. When only one synchronous enable is asserted the counter becomes disabled on the next CLK transition; all outputs remain in the previous state poised for the other synchronous enable or A_Start to be asserted to re-enable the counter. Asserting both synchronous enables causes the counter to beco……
