参数资料
| 型号： | SY10E016JY |
| 厂商： | Micrel Inc |
| 文件页数： | 9/10页 |
| 文件大小： | 0K |
| 描述： | IC UPCOUNTER 8BIT SYNC 28-PLCC |
| 标准包装： | 38 |
| 系列： | 10E |
| 逻辑类型： | 二进制计数器 |
| 方向： | 上 |
| 元件数： | 1 |
| 每个元件的位元数： | 8 |
| 复位： | 异步 |
| 计时： | 同步 |
| 计数速率： | 900MHz |
| 触发器类型： | 正边沿 |
| 电源电压： | 4.2 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-LCC（J 形引线） |
| 供应商设备封装： | 28-PLCC |
| 包装： | 管件 |
| 产品目录页面： | 1086 (CN2011-ZH PDF) |
| 其它名称： | 576-2482 SY10E016JY-ND |
8
SY10E016
SY100E016
Micrel, Inc.
M9999-032006
hbwhelp@micrel.com or (408) 955-1690
is used as the divide output and the pulse duration is equal to
a full clock period. For even divide ratios twice the desired
divide ratio can be loaded into the E016 and the TC output can
feed the clock input of a toggle flip-flop to create a signal
divided as desired with a 50% duty cycle.
A single E016 can be used to divide by any ratio from 2 to
256, inclusive. If divide ratios of greater than 256 are needed,
multiple E016s can be cascaded in a manner similar to that
already discussed. When E016s are cascaded to build larger
dividers, the TCLD pin will no longer provide a means for
loading on terminal count. Because one does not want to
reload the counters until all of the devices in the chain have
reached terminal count, external gating of the TC pins must be
used for multiple E016 divider chains.
Figure 4 on the following page shows a typical block
diagram of a 32-bit divider chain. Once again, the maximize
the frequency of operation, E101 OR gates were used. For
lower frequency applications, a slower OR gate could replace
the E101. Note that for a 16-bit divider, the OR function
feeding the PE (program enable) input CANNOT be replaced
by a wire OR tie as the TC output of the least significant E016
must also feed the CE input of the most significant E016. If the
two TC outputs were OR tied, the cascaded count operation
would not operate properly. Because in the cascaded form
the PE feedback is external and requires external gating, the
maximum frequency of operation will be significantly less than
the same operation in a single device.
Maximizing E016 Count Frequency
The E016 device produces nine fast transitioning single-
ended outputs; thus, VCC noise can become significant in
situations where all of the outputs switch simultaneously in the
same direction. This VCC noise can negatively impact the
maximum frequency of operation of the device. Since the
device does not need to have the Q outputs terminated to
count properly, it is recommended that, if the outputs are not
going to be used in the rest of the system, they should be left
unterminated. In addition, if only a subset of the Q outputs are
used in the system, only those outputs should be terminated.
Not terminating the unused outputs will not only cut down the
VCC noise generated, but will also save in total system power
dissipation. Following these guidelines will allow designers to
either be more aggressive in their designs, or provide them
Divide
Preset Data Inputs
Ratio
P7
P6
P5
P4
P3
P2
P1
P0
2
H
HHH
L
3
H
HHH
H
L
H
4
H
HHH
H
L
5
H
HHH
L
H
112
H
L
H
L
113
H
L
H
114
H
L
H
L
254
L
H
L
255
L
H
256
L
Table 1. Preset Values for Various Divide Ratios
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| SY10E016JY TR | 功能描述:计数器移位寄存器 8-Bit Synchronous Binary Up Counter (I Temp, Lead Free) RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
| SY10E101JC | 功能描述:IC GATE OR/NO QUAD 4INPUT 28PLCC RoHS:否 类别:集成电路 (IC) >> 逻辑 - 栅极和逆变器 - 多功能，可配置 系列:10E 产品变化通告:Product Obsolescence 05/Oct/2010 标准包装:100 系列:- 逻辑类型:可配置多功能 电路数:2 输入数:2 施密特触发器输入:无 输出类型:差分 输出电流高，低:- 电源电压:2.375 V ~ 3.465 V 工作温度:-40°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-LBGA，FCBGA 供应商设备封装:16-FCBGA（4x4） 包装:带卷 (TR) |
| SY10E101JC TR | 功能描述:IC GATE OR/NO QUAD 4INPUT 28PLCC RoHS:否 类别:集成电路 (IC) >> 逻辑 - 栅极和逆变器 - 多功能，可配置 系列:10E 产品变化通告:Product Obsolescence 05/Oct/2010 标准包装:100 系列:- 逻辑类型:可配置多功能 电路数:2 输入数:2 施密特触发器输入:无 输出类型:差分 输出电流高，低:- 电源电压:2.375 V ~ 3.465 V 工作温度:-40°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-LBGA，FCBGA 供应商设备封装:16-FCBGA（4x4） 包装:带卷 (TR) |
| SY10E101JI | 功能描述:IC GATE OR/NO QUAD 4INPUT 28PLCC RoHS:否 类别:集成电路 (IC) >> 逻辑 - 栅极和逆变器 - 多功能，可配置 系列:10E 产品变化通告:Product Obsolescence 05/Oct/2010 标准包装:100 系列:- 逻辑类型:可配置多功能 电路数:2 输入数:2 施密特触发器输入:无 输出类型:差分 输出电流高，低:- 电源电压:2.375 V ~ 3.465 V 工作温度:-40°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-LBGA，FCBGA 供应商设备封装:16-FCBGA（4x4） 包装:带卷 (TR) |
| SY10E101JI TR | 功能描述:IC GATE OR/NO QUAD 4INPUT 28PLCC RoHS:否 类别:集成电路 (IC) >> 逻辑 - 栅极和逆变器 - 多功能，可配置 系列:10E 产品变化通告:Product Obsolescence 05/Oct/2010 标准包装:100 系列:- 逻辑类型:可配置多功能 电路数:2 输入数:2 施密特触发器输入:无 输出类型:差分 输出电流高，低:- 电源电压:2.375 V ~ 3.465 V 工作温度:-40°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-LBGA，FCBGA 供应商设备封装:16-FCBGA（4x4） 包装:带卷 (TR) |
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