MC10E137: ECL 8-Bit Ripple Counter _ BDTIC 中国领先电子元器件代理商

MC10E137: ECL 8-Bit 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.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 while overriding any synchronous enable signals. The E137 features XORed enable inputs, EN1 and EN2, which are synchronous to the CLK 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 become enabled on the next transition of the CLK. If EN1 (or EN2) and CLK edges are coincident, sufficient delay has been inserted in the CLK path (to compensate for the XOR gate delay and the internal D-flip flop setup time) to insure that the synchronous enable signal is clocked correctly, hence, the counter is disabled. The E137 can also be driven single-endedly utilizing the VBB output supply as the voltage reference for the CLK input signal. If a single-ended signal is to be used the VBB pin should be connected to the CLKbar input and MR bypassed to ground via a 0.01 uF capacitor. VBB can only source/sink 0.5mA, therefore it should be used as a switching reference for the E137 only. All input pins left open will be pulled LOW via an input pulldown resistor. Therefore, do not leave the differential CLK inputs open. Doing so causes the current source transisto

特性

Differential Clock Input and Data Output Pins
VBB Output for Single-Ended Use
Synchronous and Asynchronous Enable Pins
Asynchronous Master Reset
PECL Mode Operating Range: VCC = 4.2 V to 5.7 V with VEE = 0 V
NECL Mode Operating Range: VCC = 0 V with VEE = -4.2 V to -5.7 V
Internal Input Pulldown Resistors
ESD Protection: > 2 KV HBM, > 100 V MM
Meets or Exceeds JEDEC Spec EIA/JESD78 IC Latchup Test
Moisture Sensitivity Level 1For Additional Information, see Application Note AND8003/D
Flammability Rating: UL-94 code V-0 @ 1/8", Oxygen Index 28 to 34
Transistor Count = 330 devices
Pb-Free Packages are Available

封装

应用注释 (17)

Document Title	Document ID/Size	Revision	Revision Date
AC Characteristics of ECL Devices	AND8090/D (896.0kB)	1
Clock Generation and Clock and Data Marking and Ordering Information Guide	AND8002/D (71kB)	12
Clock Management Design Using Low Skew and Low Jitter Devices	TND301/D (205.0kB)	0
Designing with PECL (ECL at +5.0 V)	AN1406/D (105.0kB)	2
ECL Clock Distribution Techniques	AN1405/D (54.0kB)	1
ECLinPS and ECLinPS Lite SPICE I/O Modeling Kit	AN1503/D (120.0kB)	6
ECLinPS™ Circuit Performance at Non-Standard VIH Levels	AN1404/D (51.0kB)	1
Interfacing Between LVDS and ECL	AN1568/D (121.0kB)	11
Interfacing with ECLinPS	AND8066/D (72kB)	3
Metastability and the ECLinPS Family	AN1504/D (103.0kB)	3
Odd Number Divide By Counters with 50% Outputs and Synchronous Clocks	AND8001/D (90.0kB)	0
Phase Lock Loop General Operations	AND8040/D (64.0kB)	3
Storage and Handling of Drypack Surface Mount Device	AND8003/D (49kB)	2	Mar, 2016
Termination of ECL Logic Devices	AND8020/D (176.0kB)	6
The ECL Translator Guide	AN1672/D (142.0kB)	12
Thermal Analysis and Reliability of WIRE BONDED ECL	AND8072/D (119.0kB)	5
Using Wire-OR Ties in ECLInPS™ Designs	AN1650/D (1130.0kB)	3