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參數資料
| 型號： | SY10E136 |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | 6-BIT UNIVERSAL UP/DOWN COUNTER |
| 中文描述： | 6位通用加/減計數器 |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 119K |
| 代理商： | SY10E136 |
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
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相關代理商/技術參數 |
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|---|---|
| SY10E136JC | 功能描述:IC COUNTER UP/DOWN 6-BIT 28-PLCC RoHS:否 類別:集成電路 (IC) >> 邏輯 -計數器，除法器 系列:10E 產品變化通告:1Q2012 Discontinuation 30/Mar/2012 標準包裝:2,500 系列:74HC 邏輯類型:二進制計數器 方向:上 元件數:1 每個元件的位元數:12 復位:異步 計時:- 計數速率:50MHz 觸發器類型:負邊沿 電源電壓:2 V ~ 6 V 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| SY10E136JC TR | 功能描述:IC COUNTER UP/DOWN 6-BIT 28-PLCC RoHS:否 類別:集成電路 (IC) >> 邏輯 -計數器，除法器 系列:10E 產品變化通告:1Q2012 Discontinuation 30/Mar/2012 標準包裝:2,500 系列:74HC 邏輯類型:二進制計數器 方向:上 元件數:1 每個元件的位元數:12 復位:異步 計時:- 計數速率:50MHz 觸發器類型:負邊沿 電源電壓:2 V ~ 6 V 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| SY10E136JZ | 功能描述:計數器移位寄存器 6-bit Universal Up/Down Counter (Lead Free) RoHS:否 制造商:Texas Instruments 計數器類型: 計數順序:Serial to Serial/Parallel 電路數量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| SY10E136JZ TR | 功能描述:計數器移位寄存器 6-bit Universal Up/Down Counter (Lead Free) RoHS:否 制造商:Texas Instruments 計數器類型: 計數順序:Serial to Serial/Parallel 電路數量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| SY10E136JZTR | 功能描述:IC COUNTER U/D 6BIT UNIV 28-PLCC RoHS:是 類別:集成電路 (IC) >> 邏輯 -計數器，除法器 系列:10E 產品變化通告:1Q2012 Discontinuation 30/Mar/2012 標準包裝:2,500 系列:74HC 邏輯類型:二進制計數器 方向:上 元件數:1 每個元件的位元數:12 復位:異步 計時:- 計數速率:50MHz 觸發器類型:負邊沿 電源電壓:2 V ~ 6 V 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
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