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M27W016-110B1T Folha de dados(PDF) 4 Page - STMicroelectronics |
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M27W016-110B1T Folha de dados(HTML) 4 Page - STMicroelectronics |
4 / 26 page M27W016 4/26 SUMMARY DESCRIPTION The M27W016 is a 16 Mbit (2Mb x16) non-volatile, One Time Programmable (OTP), FlexibleROM™ Memory. Read operations can be performed using a single low voltage (2.7 to 3.6V) supply. Program operations require an additional VPP (11.4 to 12.6V) power supply. On power-up the memory defaults to Read mode where it can be read in the same way as a ROM or EPROM. Program commands are written to the Command Interface of the memory. An on-chip Program Con- troller (PC) simplifies the process of programming the memory by taking care of all of the special op- erations that are required to update the memory contents. The M27W016 features an innovative command, Multiple Word Program, used to program large streams of data. It greatly reduces the total pro- gramming time when a large number of Words are written to the memory at any one time. Using this command the entire memory can be programmed in 2s, compared to 9s using the standard Word Program. The end of a program operation can be detected and any error conditions identified. The command set required to control the memory is consistent with JEDEC standards. Chip Enable and Output Enable signals control the bus operation of the memory. They allow simple connection to most microprocessors, often without additional logic. The memory is offered in SO44, TSOP48 (12 x 20mm), PDIP42 and SDIP42 packages. The memory is supplied with all the bits set to ’1’. Figure 2. Logic Diagram Table 1. Signal Names AI05906 20 A0-A19 DQ0-DQ15 VCC M27W016 E VSS 16 G VPP A0-A19 Address Inputs DQ0-DQ15 Data Inputs/Outputs E Chip Enable G Output Enable VCC Supply Voltage read VPP Supply Voltage program VSS Ground NC Not Connected Internally |
Nº de peça semelhante - M27W016-110B1T |
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Descrição semelhante - M27W016-110B1T |
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