参数资料
| 型号： | SY10E016JY |
| 厂商： | Micrel Inc |
| 文件页数： | 7/10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 |
6
SY10E016
SY100E016
Micrel, Inc.
M9999-032006
hbwhelp@micrel.com or (408) 955-1690
APPLICATIONS INFORMATION
Cascading Multiple E016 Devices
For applications which call for larger than 8-bit counters,
multiple E016s can be tied together to achieve very wide bit
width counters. The active low terminal count (TC) output and
count enable input (CE) greatly facilitate the cascading of
E016 devices. Two E016s can be cascaded without the need
for external gating; however, for counters wider than 16 bits,
external OR gates are necessary for cascade implementations.
Figure 1, below, pictorially illustrates the cascading of 4
E016s to build a 32-bit high frequency counter. Note the E101
gates used to OR the terminal count outputs of the lower order
E016s to control the counting operation of the higher order
bits. When the terminal count of the preceding device (or
devices) goes low (the counter reaches an all 1s state), the
more significant E016 is set in its count mode and will count
one binary digit upon the next positive clock transition. In
addition, the preceding devices will also count one bit, thus
sending their terminal count outputs back to a high state,
disabling the count operation of the more significant counters
and placing them back into hold modes. Therefore, for an
E016 in the chain to count all of the lower order terminal count
outputs, it must be in the low state. The bit width of the counter
can be increased or decreased by simply adding or subtracting
E016 devices from Figure 1 and maintaining the logic pattern
illustrated in the same figure.
The maximum frequency of operation for the cascaded
counter chain is set by the propagation delay of the TC output
and the necessary set-up time of the CE input and the
propagation delay through the OR gate controlling it (for 16-
bit counters the limitation is only the TC propagation delay and
the CE set-up time). Figure 1 shows E101 gates used to
control the count enable inputs; however, if the frequency of
operation is lower, a slower ECL OR gate can be used. Using
the worst case guarantees for these parameters from the
ECLinPS data book, the maximum count frequency for a
greater than 16-bit counter is 475MHz and that for a 16-bit
counter is 625MHz. Note that this assumes the trace delay
between the TC outputs and the CE inputs are negligible. If
this is not the case, estimates of these delays need to be
added to the calculations.
Figure 1. 32-Bit Cascaded E016 Counter
Q0–Q7
P0–P7
CE
PE
TC
CLK
E016
LSB
TC
CLK
E016
TC
CLK
E016
TC
CLK
E016
MSB
LOAD
"LO"
CLOCK
E101
Q0–Q7
P0–P7
CE
PE
CE
PE
CE
PE
E101
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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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