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参数资料
| 型号： | MC14489BDWE |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 4/22页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER LED/LAMP 5CH 20-SOIC |
| 标准包装： | 38 |
| 显示器类型： | LED |
| 配置： | 7 段显示 |
| 接口： | 串行 |
| 电流 - 电源： | 5.5mA |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 130°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 809 (CN2011-ZH PDF) |
AC ELECTRICAL CHARACTERISTICS (TJ = – 40 ° to 130 ° C*, CL = 50 pF, Input tr = tf = 10 ns)
VDD
Guaranteed
Symbol
fclk
tPLH,
tPHL
Parameter
Serial Data Clock Frequency, Single Device or Cascaded Devices
NOTE: Refer to Clock tw below
(Figure 1)
Maximum Propagation Delay, Clock to Data Out
(Figures 1 and 5)
V
3.0
4.5
5.5
3.0
4.5
Limit
dc to 3.0
dc to 4.0
dc to 4.0
140
80
Unit
MHz
ns
5.5
80
tTLH,
tTHL
Maximum Output Transistion Time, Data Out
(Figures 1 and 5)
3.0
4.5
70
50
ns
5.5
50
fR
Refresh Rate — Bank 1 through Bank 5
(Figures 2 and 6)
3.0
4.5
NA
700 to 1900
Hz
5.5
700 to 1900
Cin
Maximum Input Capacitance — Data In, Clock, Enable
—
10
pF
* See Thermal Considerations section.
TIMING REQUIREMENTS (TJ = – 40 ° to 130 ° C*, Input tr = tf = 10 ns unless otherwise indicated )
VDD
Guaranteed
Symbol
tsu, th
Parameter
Minimum Setup and Hold Times, Data In versus Clock
(Figure 3)
V
3.0
4.5
Limit
50
40
Unit
ns
5.5
40
tsu, th,
trec
Minimum Setup, Hold, ** and Recovery Times, Enable versus Clock
(Figure 4)
3.0
4.5
150
100
ns
5.5
100
tw(L)
Minimum Active–Low Pulse Width, Enable
(Figure 4)
3.0
4.5
4.5
3.4
μ s
5.5
3.4
tw(H)
Minimum Inactive–High Pulse Width, Enable
(Figure 4)
3.0
4.5
300
150
ns
5.5
150
tw
Minimum Pulse Width, Clock
(Figure 1)
3.0
4.5
167
125
ns
5.5
125
tr, tf
Maximum Input Rise and Fall Times — Data In, Clock, Enable
(Figure 1)
3.0
4.5
1
1
ms
5.5
1
VDD = 4.5 to 5.5 V, clk > 2.34 MHz: th = 3300 – (7500/fclk)
* See Thermal Considerations section.
** For a high–speed 8–Clock access, th for Enable is determined as follows:
VDD = 3 to 4.5 V, fclk > 1.78 MHz: th = 4350 – (7500/fclk)
f
where th is in ns and fclk is in MHz.
NOTES:
1. This restriction does NOT apply for fclk rates less than those listed above. For “slow” fclk rates, use the th limits in the above table.
2. This restriction does NOT apply for an access involving more than 8 Clocks. For > 8 Clocks, use the th limits in the above table.
MC14489B
4
MOTOROLA
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