參數(shù)資料
型號: SY100S336JC
廠商: Micrel Inc
文件頁數(shù): 1/10頁
文件大小: 0K
描述: IC COUNTER/SHIFT REG 28-PLCC
標(biāo)準(zhǔn)包裝: 38
系列: 100S
邏輯類型: 計(jì)數(shù)器/移位寄存器
電源電壓: 4.2 V ~ 5.5 V
位數(shù): 4
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 28-PLCC
包裝: 管件
1
SY100S336
Micrel, Inc.
M9999-032206
hbwhelp@micrel.com or (408) 955-1690
Pin
Function
CP
Clock Pulse Input
CEP
Count Enable Parallel Input (Active LOW)
D0/CET
Serial Data Input/Count Enable Trickle
Input (Active LOW)
S0 — S2
Select Inputs
MR
Master Reset Input
VEES
VEE Substrate
VCCA
VCCO for ECL Outputs
P0 – P3
Preset Inputs
D3
Serial Data Input
TC
Terminal Count Output
Q0 — Q3
Data Outputs
Q0 — Q3
Complementary Data Outputs
PIN NAMES
SY100S336
4-STAGE COUNTER/
SHIFT REGISTER
s Max. shift frequency of 700MHz
s Clock to Q delay max. of 1100ps
s IEE min. of –170mA
s Internal 75K
input pull-down resistors
s Industry standard 100K ECL levels
s Extended supply voltage option:
VEE = –4.2V to –5.5V
s Voltage and temperature compensation for improved
noise immunity
s 50% faster than Fairchild 300K at lower power
s Function and pinout compatible with Fairchild F100K
s Available in 24-pin CERPACK and 28-pin PLCC
packages
FEATURES
DESCRIPTION
The SY100S336 functions either as a modulo-16 up/
down counter or as a 4-bit bidirectional shift register and is
designed for use in high-performance ECL systems. Three
Select inputs (Sn) are provided for determining the mode of
operation. The Function Table lists the available modes of
operation. In order to allow cascading for multistage
counters, two Count Enable controls (CEP, CET) are
provided. The CET input also functions as the Serial Data
input (S0) for a shift-up operation, while the D3 input serves
as the Serial Data input for the shift-down operation.
When the device is in the counting mode, the Terminal
Count (TC) goes to a logical LOW when the count reaches
15 for count-up or reaches 0 for count-down. When in the
shift mode, the TC output simply repeats the Q3 output.
The flexiblity provided by the TC/Q3 output and the D0/
CET input allows these signals to be interconnected from
one stage to the next higher stage for multistage counting
or shift-up operations. The individual Presets (Pn) allow
initialization of the counter by entering data in parallel to
preset the counter. A logic HIGH on the Master Reset (MR)
overrides all other inputs and asynchronously clears the
flip-flops. An additional synchronous Clear is provided, as
well as a complement function which synchronously inverts
the contents of the flip-flops. All inputs have 75K
pull-
down resistors.
Rev.: H
Amendment: /0
Issue Date:
March 2006
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