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ST78C34IJ44规格书详情
DESCRIPTION
The ST78C34 is a monolithic Bidirectional Parallel port designed to operate as a general purpose I/O port. It contains all the necessary input/output signals to be configured as a CENTRONICS printer port.
The ST78C34 is a general purpose input/output controller with 83 byte internal FIFO. FIFO operation can be enabled or disabled. For CENTRONICS printer operation, all registers are mapped to IBM printer port registers.
The ST78C34 is designed to operate as normal printer interface without any additional settings. Contents of the FIFO will be cleared after reset or setting the INIT pin to a low state. The auto FIFO operation starts after the first -ACK is received from the printer. Contents of the FIFO transfer to the printer at the printer loading speed.
FEATURES
• 83 bytes of printer output FIFO
• Bi-directional software parallel port
• Bi-directional I/O ports
• Register compatible to IBM XT, AT, compatible 386, 486
• Selectable interrupt polarity
• Selectable FIFO interrupts
产品属性
- 型号:
ST78C34IJ44
- 制造商:
EXAR
- 制造商全称:
EXAR
- 功能描述:
GENERAL PURPOSE PARALLEL PRINTER PORT WITH 83 BYTE FIFO
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
EXAR/艾科嘉 |
2048+ |
PLCC44 |
9852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
Exar |
22+ |
44PLCC |
9000 |
原厂渠道,现货配单 |
询价 | ||
XR |
O411 |
PLCC-44P |
353 |
询价 | |||
XR |
23+ |
NA |
2035 |
航宇科工半导体-中国航天科工集团战略合作伙伴! |
询价 | ||
XR |
23+ |
PLCC |
2 |
询价 | |||
Exar |
21+ |
44PLCC |
13880 |
公司只售原装,支持实单 |
询价 | ||
23+ |
N/A |
49400 |
正品授权货源可靠 |
询价 | |||
XR |
21+ |
PLCC |
15000 |
原厂VIP渠道,亚太地区一级代理商,可提供更多数量! |
询价 | ||
EXAR/艾科嘉 |
2122+ |
PLCC |
17700 |
全新原装正品现货,优势渠道可含税假一赔十 |
询价 | ||
XR |
2308+ |
PLCC |
4862 |
只做进口原装!假一赔百!自己库存价优! |
询价 |