- 您現(xiàn)在的位置：買賣IC網 > PDF目錄383851 > SY100E137JZ (Micrel Semiconductor,Inc.) 8-BIT RIPPLE COUNTER PDF資料下載
參數資料
| 型號： | SY100E137JZ |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-BIT RIPPLE COUNTER |
| 中文描述： | 8位紋波計數器 |
| 文件頁數： | 1/5頁 |
| 文件大?。?/td> | 75K |
| 代理商： | SY100E137JZ |
1
SY10E137
SY10E137
SY100E137
Micrel, Inc.
M9999-032006
hbwhelp@micrel.com or (408) 955-1690
Pin
Function
CLK, CLK
Differential Clock Inputs
Q
0
–Q
7
, Q
0
–Q
7
Differential Q Outputs
A_Start
Asynchronous Enable Input
EN
1
, EN
2
Synchronous Enable Inputs
MR
Asynchronous Master Reset
V
BB
Switching Reference Output
V
CCO
V
CC
to Output
FEATURES
I
1.8GHz min. count frequency
I
Extended 100E V
EE
range of –4.2V to –5.5V
I
Synchronous and asynchronous enable pins
I
Differential clock input and data output pins
I
V
BB
output for single-ended use
I
Asynchronous Master Reset
I
Internal 75K
input pull-down resistors
I
Available in 28-pin PLCC packge
DESCRIPTION
The SY10/100E137 are very high speed binary ripple
counters. 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 counters to operate at very high frequencies, while
maintaining a moderate power dissipation level.
The devices are ideally suited for multiple frequency
clock generation, as well as for counters in high-
performance ATE time measurement boards.
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 XOR'ed
enable inputs, EN
1
and EN
2
, 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 in order to re-enable the counter. Asserting
both synchronous enables causes the counter to become
enabled on the next transition of the CLK. EN
1
(or EN
2
)
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 set-up time) to
ensure that the synchronous enable signal is clocked
correctly; hence, the counter is disabled.
The E137 can also be driven single-endedly utilizing
the V
BB
output supply as the voltage reference for the
CLK input signal. If a single-ended signal is to be used,
the V
BB
pin should be connected to the CLK input and
bypassed to ground via a 0.01
μ
F capacitor. V
BB
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
pull-down resistor. Therefore, do not leave the differential
CLK inputs open. Doing so causes the current source
transistor of the input clock gate to become saturated,
thus upsetting the internal bias regulators and
jeopardizing the stability of the device.
The asynchronous Master Reset resets the counter to
an all zero state upon assertion.
PIN NAMES
8-BIT RIPPLE
COUNTER
Rev.: E
Issue Date: March 2006
Amendment: /0
相關PDF資料 |
PDF描述 |
|---|---|
| SY100E137JZTR | 8-BIT RIPPLE COUNTER |
| SY100E142JZ | 9-BIT SHIFT REGISTER |
| SY100E142JZTR | 9-BIT SHIFT REGISTER |
| SY100E143JZ | 9-BIT HOLD REGISTER |
| SY100E143JZTR | 9-BIT HOLD REGISTER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SY100E137JZ TR | 功能描述:計數器移位寄存器 8-bit Ripple Counter 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 |
| SY100E137JZTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:8-BIT RIPPLE COUNTER |
| SY100E141 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:8-BIT SHIFT REGISTER |
| SY100E141JC | 功能描述:IC SHIFT REGISTER 8-BIT 28-PLCC RoHS:否 類別:集成電路 (IC) >> 邏輯 - 移位寄存器 系列:100E 標準包裝:1,000 系列:- 邏輯類型:移位寄存器 輸出類型:差分 元件數:1 每個元件的位元數:4 功能:串行至并行 電源電壓:4.2 V ~ 5.7 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) |
| SY100E141JC TR | 功能描述:IC SHIFT REGISTER 8-BIT 28-PLCC RoHS:否 類別:集成電路 (IC) >> 邏輯 - 移位寄存器 系列:100E 標準包裝:1,000 系列:- 邏輯類型:移位寄存器 輸出類型:差分 元件數:1 每個元件的位元數:4 功能:串行至并行 電源電壓:4.2 V ~ 5.7 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復。