发明名称 |
Microcomputer with automatic refresh of on-chip dynamic RAM transparent to CPU |
摘要 |
A microcomputer device is disclosed containing a ROM for program memory, a read/write memory, and a CPU in a single integrated circuit. Input/output ports, interrupt and operating mode controls are memory mapped in the same logical address space as the program and read/write memory. The read/write memory is an array of one-transistor type dynamic storage cells in which data bits are stored in capacitor; refresh of this dynamic RAM is accomplished in a manner transparent to the CPU by an automatically-incremented address counter. Each data bit uses two one-transistor cells in a balanced, complementary array.
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申请公布号 |
US4459660(A) |
申请公布日期 |
1984.07.10 |
申请号 |
US19810253467 |
申请日期 |
1981.04.13 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
BELLAY, JEFFREY D.;HOGAN, MICHAEL J.;MCDONOUGH, KEVIN C.;HAYN, JOHN W. |
分类号 |
G06F13/26;G06F15/78;G11C11/406;(IPC1-7):G06F13/00 |
主分类号 |
G06F13/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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