93C46B-ESM Microchip Technology, 93C46B-ESM Datasheet
93C46B-ESM
Related parts for 93C46B-ESM
93C46B-ESM Summary of contents
Page 1
... Advanced CMOS technology makes this device ideal for low-power, nonvolatile memory applications. The 93C46B is available in standard 8-pin DIP, surface mount SOIC, and TSSOP packages. The 93C46BX are only offered in a 150 mil SOIC package. SOIC SOIC ...
Page 2
... ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* V ...................................................................................7.0V CC All inputs and outputs w.r.t. V ...............-0. Storage temperature .....................................- +150 C Ambient temp. with power applied.................- +125 C Soldering temperature of leads (10 seconds) ............. +300 C ESD protection on all pins................................................4 kV *Notice: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device ...
Page 3
... RESET status. 2.2 Serial Clock (CLK) The Serial Clock (CLK) is used to synchronize the com- munication between a master device and the 93C46B. Opcodes, addresses, and data bits are clocked in on the positive edge of CLK. Data bits are also clocked out on the positive edge of CLK. ...
Page 4
... FUNCTIONAL DESCRIPTION Instructions, addresses and write data are clocked into the DI pin on the rising edge of the clock (CLK). The DO pin is normally held in a HIGH-Z state except when reading data from the device, or when checking the READY/BUSY status during a programming operation. ...
Page 5
... ERAL cycle is CSL complete. T CSL ••• CSL 0 X ••• Preliminary 93C46B CHECK STATUS BUSY READY HIGH-Z CHECK STATUS BUSY READY HIGH-Z DS21172D-page 5 ...
Page 6
... ERASE/WRITE Disable and Enable (EWDS/EWEN) The device powers up in the ERASE/WRITE Disable (EWDS) state. All programming modes must be pre- ceded by an Erase/Write Enable (EWEN) instruction. Once the EWEN instruction is executed, programming remains enabled until an EWDS instruction is executed or Vcc is removed from the device. To protect against ...
Page 7
... CS is brought high after a minimum of 250 ns low (T ). CSL T CSL ••• ••• BUSY Twc T CSL 1 X ••• ••• Preliminary 93C46B READY HIGH BUSY READY HIGH DS21172D-page 7 ...
Page 8
... NOTES: DS21172D-page 8 Preliminary 1997 Microchip Technology Inc. ...
Page 9
... NOTES: 1997 Microchip Technology Inc. Preliminary 93C46B DS21172D-page 9 ...
Page 10
... NOTES: DS21172D-page 10 Preliminary 1997 Microchip Technology Inc. ...
Page 11
... ST = TSSOP, 8-lead Blank = + - + - +125 C 93C46B = 1K Microwire Serial EEPROM 93C46BT = 1K Microwire Serial EEPROM Tape and Reel 93C46BX = 1K Microwire Serial EEPROM in alternate pinout (SN only) 93C46BXT = 1K Microwire Serial EEPROM in alternate pinout, Tape and Reel (SN only) Preliminary 93C46B DS21172D-page 11 ...
Page 12
... Information contained in this publication regarding device applications and the like is intended for suggestion only and may be superseded by updates. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip ...