参数资料
| 型号： | ST16C452CJ68-F |
| 厂商： | Exar Corporation |
| 文件页数： | 11/30页 |
| 文件大小： | 0K |
| 描述： | IC UART W/PAR PORT DUAL 68PLCC |
| 标准包装： | 19 |
| 特点： | * |
| 通道数： | 2，DUART |
| FIFO's： | 1 字节 |
| 规程： | 打印机 |
| 电源电压： | 2.97 V ~ 5.5 V |
| 带并行端口： | 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： | 68-LCC（J 形引线） |
| 供应商设备封装： | 68-PLCC |
| 包装： | 管件 |
| 其它名称： | ST16C452CJ68-F-ND |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页
19
ST16C452/452PS
Rev. 3.20
Scratchpad Register (SPR)
The ST16C452/452PS provides a temporary data
register to store 8 bits of user information.
PRINTER PORT REGISTER DESCRIPTIONS
Port Register (PR)
PR BIT 0-7:
Printer Data port (Bi-directional) - These pins are the
eight bit data bus for transferring information to or
from an external device (usually a printer). D0 is the
least significant bit. PD7-PD0 are latched during a
write cycle (output mode).
I/O Select Register (IOSEL) [452PS only]
This register is used in conjunction with the state of
BIDEN to set the direction (input/output) of the PD7-
PD0 data bus. This register is used only when BIDEN
is a logic 0.
Logic 55 (Hex) + BIDEN 0 = PD7-PD0 are set for
output mode
Logic AA (Hex) + BIDEN 0 = PD7-PD0 are set for input
mode
Status Register (SR)
This register provides the printer port input logical
states and the status of the interrupt -INTP based on
the condition of the -ACK printer port interface signal.
The logical state of these pins is dependent on exter-
nal interface signals.
SR BIT 1-0:
Not Used - initialized to a logic 1.
SR BIT-2:
Logic 0 = an interrupt is pending
When INTSEL is a logic 0, SR bit-2 basically tracks the
-ACK input interface pin (returns to a logic 1 when the
-ACK input returns to a logic 1). However when
INTSEL is a logic 1, the latched mode is selected, SR
bit-2 goes to a logic 0 with the -ACK input but does not
return to a logic 1 until the end of the read cycle, i.e.,
reading SR will set this bit to a logic 1.
Logic 1 = no interrupt is pending. (normal inactive
state)
SR BIT-3:
Logic 0 = -ERROR input is a logic 0.
Logic 1 = -ERROR input is a logic 1. (normal inactive
state)
SR BIT-4:
Logic 0 = SLCT input is a logic 0. (normal inactive
state)
Logic 1 = SLCT input is a logic 1.
SR BIT-5:
Logic 0 = PE input is a logic 0. (normal inactive state)
Logic 1 = PE input is a logic 1.
SR BIT-6:
Logic 0 = -ACK input is a logic 0.
Logic 1 = -ACK input is a logic 1. (normal inactive
state)
SR BIT-7:
Logic 0 = BUSY input is a logic 0
Logic 1 = BUSY input is a logic 1 (normal inactive
state)
Command Register (COM)
This register provides the printer port input logical
states and the status of the printer interrupt INIT,
which is based on the state of CON bit-1.
COM BIT-0:
-STROBE is a bi-directional signal with an open
source driver and internal pull-up so that it may be
wire-or’d with other outputs. COM bit-1 is used to read
status while CON bit 1 is used to set an output state.
If it is to function as an input, CON bit-1 shall be set to
a logic 1 first.
Logic 0 = -STROBE pin is a logic 1. (normal default
condition)
Logic 1 = -STROBE pin is a logic 0.
COM BIT-1:
-AutoFDXT is a bi-directional signal with an open
source driver and internal pull-up so that it may be
wire-or’d with other outputs. COM bit-1 is used to read
status while CON bit 1 is used to set an output state.
If it is to function as an input, CON bit-1 shall be set to
相关PDF资料 |
PDF描述 |
|---|---|
| XR16L2750CJ-F | IC UART FIFO 64B DUAL 44PLCC |
| ST16C452IJ68PS-F | IC UART W/PAR PORT DUAL 68PLCC |
| XR16V2651IL-F | IC UART FIFO 32B DUAL 32QFN |
| XR16M2651IL32-F | IC UART FIFO 32B DUAL 32QFN |
| XR88C192IVTR-F | IC UART FIFO DUAL 44LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST16C452CJ68PS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C452CJ68PS-F | 功能描述:UART 接口集成电路 DUAL UART W/PARALEL PRINTER PORT 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 |
| ST16C452CJ68TR-F | 功能描述:UART 接口集成电路 DUAL UART W/PARALEL PRINTER PORT 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 |
| ST16C452IJ68 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C452IJ68-F | 功能描述:UART 接口集成电路 DUAL UART W/PARALEL PRINTER PORT 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 |
发布紧急采购，3分钟左右您将得到回复。