参数资料
| 型号： | SC28L91A1B,551 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 7/30页 |
| 文件大小： | 0K |
| 描述： | IC UART SINGLE W/FIFO 44-PQFP |
| 产品培训模块： | Stand-Alone UARTs |
| 标准包装： | 96 |
| 系列： | IMPACT |
| 特点： | 故障启动位检测 |
| 通道数： | 1，UART |
| FIFO's： | 16 字节 |
| 电源电压： | 3.3V，5V |
| 带自动流量控制功能： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-PQFP（10x10） |
| 包装： | 管件 |
| 产品目录页面： | 828 (CN2011-ZH PDF) |
| 其它名称： | 568-1187 935267419551 SC28L91A1B-S |
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Philips Semiconductors
Product data sheet
SC28L91
3.3 V or 5.0 V Universal Asynchronous
Receiver/Transmitter (UART)
2004 Oct 21
15
Unit
Max
Typ
Min
Parameter
Symbol
Receiver Timing, external clock (See Figure 13)
t*RXS
RxD data setup time to RxC high
50
10
ns
t*RXH
RxD data hold time from RxC high
50
10
ns
68000 or Motorola bus timing (See Figures 6, 7, 8)10
tDCR
DACKN Low (read cycle) from X1 High10
18
57
ns
tDCW
DACKN Low (write cycle) from X1 High
18
57
ns
tDAT
DACKN High impedance from CEN or IACKN High
10
15
ns
tCSC
CEN or IACKN setup time to X1 High for minimum DACKN cycle
30
10
ns
NOTES:
1. Parameters are valid over specified temperature and voltage range.
2. All voltage measurements are referenced to ground (GND). For testing, all inputs swing between 0.4 V and 3.0 V with a transition time of
5 ns maximum. For X1/CLK this swing is between 0.4 V and 0.8*VCC. All time measurements are referenced at input voltages of 0.8 V and
2.0 V and output voltages of 0.8 V and 2.0 V, as appropriate.
3. Test conditions for outputs: CL = 125 pF, except open drain outputs. Test conditions for open drain outputs: CL = 125 pF,
constant current source = 2.6 mA.
4. Typical values are the average values at +25
°C and 3.3 V.
5. Timing is illustrated and referenced to the WRN and RDN Inputs. Also, CEN may be the “strobing” input. CEN and RDN (also CEN and
WRN) are ORed internally. The signal asserted last initiates the cycle and the signal negated first terminates the cycle.
6. Guaranteed by characterization of sample units.
7. If CEN is used as the “strobing” input, the parameter defines the minimum High times between one CEN and the next. The RDN signal must
be negated for tRWD to guarantee that any status register changes are valid.
8. Minimum frequencies are not tested but are guaranteed by design.
9. Clocks for 1X mode should maintain a 60/40 duty cycle or better.
10. Minimum DACKN time is tDCR = tDSC + tDCR + two positive edges of the X1 clock. For faster bus cycles, the 80XXX bus timing may be used
while in the 68XXX mode. It is not necessary to wait for DACKN to insure the proper operation of the SC28C91. In all cases the data will be
written to the SC28L91 on the falling edge of DACKN or the rise of CEN. The fall of CEN initializes the bus cycle. The rise of CEN ends the
bus cycle. DACKN low or CEN high completes the write cycle.
相关PDF资料 |
PDF描述 |
|---|---|
| SC28L91A1B,528 | IC UART SINGLE W/FIFO 44PQFP |
| SC28L91A1A,529 | IC UART SINGLE W/FIFO 44-PLCC |
| SCC68692C1A44,512 | IC UART DUAL 44-PLCC |
| SCC68692C1A44,518 | IC DUART 44PLCC |
| ATMEGA164PA-AUR | MCU AVR 16KB FLASH 20MHZ 44TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SC28L91A1B-S | 功能描述:UART 接口集成电路 UART SINGLE W/FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC28L91A1B-T | 功能描述:UART 接口集成电路 3V-5V 1CH UART INTEL/MOT INTRF RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC28L92 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:3.3V-5.0V Dual Universal Asynchronous Receiver/Transmitter DUART |
| SC28L92A1A | 制造商:NXP Semiconductors 功能描述:UART DUAL 3.3V OR 5V SMD 28L92 |
| SC28L92A1A,512 | 功能描述:UART 接口集成电路 3V-5V 2CH UART INTEL/MOT INTRF RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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