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| comp.sys.ibm.ps2.hardware | Discussing IBM PS/2 hardware | 42,985 messages |
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| Louis Ohland to All |
| Comparable Dallas RTCs [oops] |
| 18 Oct 25 10:29:30 |
d215fb54 From: ohland@charter.net 1992_Dallas_Semiconductor_Product_Data_Book.pdf page 406 Modules with Multiplexed Address/Data Bus, cycle times of 385nS 1287 50 Bytes NV SRAM 1387 4K NV SRAM 1487 8K NV SRAM [SRAM accessed same way as 1387] Replaces MC 146818A; MS-DOS compatible; programmable interrupts, square wave output. DS1387, DS1397 385ns DS13XX, DS14XX, and DS15XX meet MCA and EISA NVRAM requirements. DS1587 includes silicon serial number. Chips with Multiplexed Address/Data Bus, cycle times of 385nS 1285 50 Bytes NV SRAM 1385 4K NV SRAM 1485 8K NV SRAM [SRAM accessed same way as 1385] Replaces MC 146818A; MS-DOS compatible; programmable interrupts, square wave output. DS1387, DS1397 385ns DS13XX, DS14XX, and DS15XX meet MCA and EISA NVRAM requirements. DS1587 includes silicon serial number. --- SoupGate-Win32 v1.05 * Origin: you cannot sedate... all the things you hate (1:229/2) |
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