參數(shù)資料
型號: SY10E136JC
廠商: MICREL INC
元件分類: 通用總線功能
英文描述: RECTIFIER STANDARD SINGLE 3A 600V 600 200A-ifsm 10uA-ir 1V-vf DO-201AD 1.2K/REEL-13
中文描述: 10E SERIES, SYN POSITIVE EDGE TRIGGERED 6-BIT BIDIRECTIONAL BINARY COUNTER, PQCC28
封裝: PLASTIC, LCC-28
文件頁數(shù): 1/8頁
文件大小: 119K
代理商: SY10E136JC
Pin
Function
D
0
–D
5
Preset Data Inputs
Q
0
–Q
5
Differential Data Outputs
S
1
, S
2
Mode Control Pins
MR
Master Reset
CLK
Clock Input
C
OUT
, C
OUT
Carry Out Output (Active LOW)
CL
OUT
Look-Ahead-Carry Output
C
IN
Carry-In Input (Active LOW)
CL
IN
Look-Ahead-Carry Input
V
CCO
V
CC
to Output
DESCRIPTION
FEATURES
I
550MHz count frequency
I
Extended 100E V
EE
range of –4.2V to –5.5V
I
Look-ahead-carry input and output
I
Fully synchronous up and down counting
I
Asynchronous Master Reset
I
Internal 75K
input pull-down resistors
I
Available in 28-pin PLCC package
The SY10/100E136 are 6-bit synchronous, presettable,
cascadable universal counters. These devices generate
a look-ahead-carry output and accept a look-ahead-carry
input. These two features allow for the cascading of
multiple E136s for wider bit width counters that operate
at very nearly the same frequency as the stand-alone
counter.
The CL
OUT
output will pulse LOW for one clock cycle
one count before the E136 reaches terminal count. The
C
OUT
output will pulse LOW for one clock cycle when
the counter reaches terminal count. For more information
on utilizing the look-ahead-carry features of the device,
please refer to the applications section of this data sheet.
The differential C
OUT
output facilitates the E136's use in
programmable divider and self-stopping counter
applications.
Unlike the H136 and other similar universal counter
designs, the E136 carry-out and look-ahead-carry-out
signals are registered on chip. This design alleviates the
glitch problem seen on many counters where the carry-
out signals are merely gated. Because of this architecture,
there are some minor functional differences between the
E136 and H136 counters. The user, regardless of
familiarity with the H136, should read this data sheet
carefully. Note specifically (see block diagram) the
operation of the carry-out outputs and the look-ahead-
carry-in input when utilizing the Master Reset.
When left open, all of the input pins will be pulled
LOW via an input pulldown resistor. The Master Reset is
an asynchronous signal which, when asserted, will force
the Q outputs LOW.
The Q outputs need not be terminated for the E136 to
function properly. In fact, if these outputs will not be
used in a system, it is recommended that they be left
open to save power and minimize noise. This practice
will minimize switching noise which can reduce the
maximum count frequency of the device, or significantly
reduce margins against other noise in the system.
PIN CONFIGURATION
PIN NAMES
SY10E136
SY100E136
6-BIT UNIVERSAL
UP/DOWN COUNTER
Rev.: C
Issue Date: February, 1998
Amendment: /1
D
4
V
EE
CLK
D
2
S
2
S
1
C
IN
CL
IN
Q
4
26
27
28
1
2
3
4
18
17
16
15
14
13
12
25
24
23
22
21
20
19
5
6
7
8
9
10
11
V
C
Q
1
Q
3
Q
2
V
CC
V
CCO
C
OUT
C
OUT
CL
OUT
Q
5
PLCC
TOP VIEW
J28-1
D
3
V
C
D
5
Q
0
V
C
D
0
D
1
M
V
C
1
相關(guān)PDF資料
PDF描述
SY10E136JCTR RECTIFIER STANDARD SINGLE 3A 800V 800 200A-ifsm 10uA-ir 1V-vf DO-201AD 1.2K/REEL-13
SY10E136 6-BIT UNIVERSAL UP/DOWN COUNTER
SY10E137JC DIODE ZENER SINGLE 200mW 12.05Vz 5mA-Izt 0.0539 0.1uA-Ir 8 SOD-323 3K/REEL
SY10E137JCTR DIODE ZENER SINGLE 250mW 13Vz 5mA-Izt 0.05 0.1uA-Ir 8 DFN1006-2 3K/REEL
SY10E137 8-BIT RIPPLE COUNTER
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