HT93LC56 Holtek, HT93LC56 Datasheet
HT93LC56
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HT93LC56 Summary of contents
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... Serial Interface Write cycle time: 5ms max. General Description The HT93LC56 is a 2K-bit low voltage nonvola- tile, serial electrically erasable programmable read only memory device using the CMOS float- ing gate process. Its 2048 bits of memory are ...
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... Pin Assignment Pin Description Pin Name I Chip select input SK I Serial clock input DI I Serial data input DO O Serial data output VSS I Negative power supply ORG I Internal Organization NC — No connection VCC I Positive power supply HT93LC56 Description 2 6th May ’99 ...
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... CC I =2.1mA — — =10 A — — =–400 A 2.4 — =– –0.2 — =0V, f=250kHz — — =0V, f=250kHz — — OUT 3 HT93LC56 +0.3V CC 5 0.4 V 0.2 V — ...
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... Output load circuit 4 HT93LC56 Unit 250 kHz — ns — ns — ns — ns — ns — ns — — ns — ns — ms 6th May ’99 ...
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... Timing Diagrams Functional Description The HT93LC56 is accessed via a three-wire serial communication interface. The device is arranged into 128 words by 16 bits or 256 words by 8 bits depending whether the ORG pin is connected to VCC or VSS. The HT93LC56 contains seven in- structions: READ, ERASE, WRITE, EWEN, EWDS, ERAL and WRAL ...
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... CS is high. The DO pin will remain low but when the operation is over, the DO pin will return to high and further instructions can be executed. HT93LC56 ERAL The ERAL instruction erases the entire 128 16 or 256 8 memory cells to logical “1” state in the programming enable mode ...
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... Timing Diagrams READ EWEN/EWDS WRITE HT93LC56 7 6th May ’99 ...
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... ERASE ERAL WRAL HT93LC56 8 6th May ’99 ...
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... ORG=0 ORG=1 bit Code X8 X16 1 10 XA7~A0 XA6~ XA7~A0 XA6~ XA7~A0 XA6~ 11XXXXXXX 11XXXXXX 1 00 00XXXXXXX 00XXXXXX 1 00 10XXXXXXX 10XXXXXX 1 00 01XXXXXXX 01XXXXXX D7~D0 D15~D0 9 HT93LC56 Data ORG=0 ORG=1 X8 X16 D7~D0 D15~D0 — D7~D0 D15~D0 — — — 6th May ’99 ...
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... Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. HT93LC56 10 6th May ’99 ...