23A640-E/P MICROCHIP [Microchip Technology], 23A640-E/P Datasheet
23A640-E/P
Related parts for 23A640-E/P
23A640-E/P Summary of contents
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... SI Serial Data Input SCK Serial Clock Input HOLD Hold Input V Supply Voltage CC © 2009 Microchip Technology Inc. 23A640/23K640 Page Size Temp. Ranges 32 Byte Byte I Description: The Microchip Technology Inc. 23X640 are 64 Kbit Serial SRAM devices. The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus ...
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... V can be lowered without losing RAM data. This parameter is periodically +0.3V CC Test Conditions 23A640 (I-Temp) 23K640 (I, E-Temp -400 μ OUT ...
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... CLD 12 T Output valid from clock low Output hold time HO Note 1: This parameter is periodically sampled and not 100% tested. © 2009 Microchip Technology Inc. 23A640/23K640 Industrial (I -40°C to +85°C A Automotive (E -40°C to +125°C A Min. Max. Units = 1.5V (I-Temp) — ...
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... TABLE 1-2: AC CHARACTERISTICS (CONTINUED) AC CHARACTERISTICS Param. Sym. Characteristic No Output disable time DIS 15 T HOLD setup time HOLD hold time HOLD low to output High HOLD high to output valid HV Note 1: This parameter is periodically sampled and not 100% tested. TABLE 1-3: ...
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... CS 2 SCK MSB in SO FIGURE 1-3: SERIAL OUTPUT TIMING SCK 12 MSB out SO SI © 2009 Microchip Technology Inc High-Impedance n Don’t Care High-Impedance 13 Don’t Care 23A640/23K640 LSB LSB out DS22126C-page 5 ...
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... Figure 2-2). Page Operation – is selected when bits 7 and 6 in the STATUS register are set to 10. The 23A640/23K640 has 1024 pages of 32 Bytes. In this mode, the read and write operations are limited to within the addressed page (the address is automatically incremented internally) ...
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... SI High-Impedance SO © 2009 Microchip Technology Inc. 23A640/23K640 Description Read data from memory array beginning at selected address Write data to memory array beginning at selected address Read STATUS register Write STATUS register 16-bit Address ...
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... FIGURE 2-3: PAGE READ SEQUENCE SCK Instruction High Impedance SCK SI Page X, Word Y FIGURE 2-4: PAGE WRITE SEQUENCE SCK Instruction ...
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... Address Page X+1, Word Page X+n, Word 23A640/23K640 Page X, Word Page X+1, Word Page X+n, Word DS22126C-page 9 ...
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... FIGURE 2-6: SEQUENTIAL WRITE SEQUENCE SCK Instruction SCK Data Byte DS22126C-page 16-bit Address ...
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... SI High-Impedance SO © 2009 Microchip Technology Inc. 23A640/23K640 The mode bits indicate the operating mode of the SRAM. The possible modes of operation are Byte mode (default operation Page mode Sequential mode Reserved Write and read commands are shown in Figure 2-7 and Figure 2-8 ...
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... Write Status Register Instruction (WRSR) The Write Status Register instruction (WRSR) allows the user to write to the bits in the STATUS register as shown in Table 2-2. This allows for setting of the Device operating mode. Several of the bits in the STATUS register must be cleared to ‘0’. See Figure 2-8 for the WRSR timing sequence ...
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... SI pin are latched on the rising edge of the clock input, while data on the SO pin is updated after the falling edge of the clock input. © 2009 Microchip Technology Inc. 23A640/23K640 3.5 Hold (HOLD) The HOLD pin is used to suspend transmission to the 23X640 while in the middle of a serial sequence without having to retransmit the entire sequence again ...
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... PACKAGING INFORMATION 4.1 Package Marking Information 8-Lead PDIP XXXXXXXX T/XXXNNN YYWW 8-Lead SOIC (3.90 mm) XXXXXXXT XXXXYYWW NNN 8-Lead TSSOP XXXX TYWW NNN Legend: XX...X Part number or part number code T Temperature ( Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘ ...
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... Microchip Technology Inc. 23A640/23K640 PLO %RG\ >3',3@ DS22126C-page 15 ...
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... DS22126C-page 16 PP %RG\ >62,&@ α φ β © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. 23A640/23K640 PP %RG\ >62,&@ DS22126C-page 17 ...
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... DS22126C-page 18 PP %RG\ >76623@ φ I © 2009 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (12/2008) Original Release. Revision B (01/2009) Revised Section 2.5: Added a paragraph. Revision C (04/2009) Removed Preliminary status; Revised Current; Revised Table 1-1, Param. No. D009; Revised TSSOP Package marking information; Product ID. © 2009 Microchip Technology Inc. 23A640/23K640 Standby Revised DS22126C-page 19 ...
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... NOTES: DS22126C-page 20 © 2009 Microchip Technology Inc. ...
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... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. © 2009 Microchip Technology Inc. 23A640/23K640 CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • Distributor or Representative • ...
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... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: 23A640/23K640 Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs you find the organization of this document easy to follow? If not, why? 4 ...
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... Plastic SOIC (3.90 mm body), 8-lead ST = TSSOP, 8-lead © 2009 Microchip Technology Inc. /XX X Examples: Package 23A640/23K640 . 23K640-I/ Kbit, 3.6V Serial SRAM, Industrial temp., TSSOP package 23A640T-I/ Kbit, 1.8V Serial SRAM, Industrial temp., Tape & Reel, SOIC package 23K640-E/ Kbit, 3.6V Serial SRAM, Automotive temp., TSSOP package DS22126C-page 23 ...
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... NOTES: DS22126C-page 24 © 2009 Microchip Technology Inc. ...
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... India. The Company’s quality system processes and procedures are for its PIC MCUs and dsPIC ® devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified ...
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W ORLDWIDE AMERICAS ASIA/PACIFIC Corporate Office Asia Pacific Office 2355 West Chandler Blvd. Suites 3707-14, 37th Floor Chandler, AZ 85224-6199 Tower 6, The Gateway Tel: 480-792-7200 Harbour City, Kowloon Fax: 480-792-7277 Hong Kong Technical Support: Tel: 852-2401-1200 http://support.microchip.com Fax: 852-2401-3431 ...