23K256-I/SN Microchip Technology Inc., 23K256-I/SN Datasheet
23K256-I/SN
Specifications of 23K256-I/SN
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23K256-I/SN 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. 23A256/23K256 Page Size Temp. Ranges 32 Byte Byte I Description: The Microchip Technology Inc. 23X256 are 256 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 23A256 (I-Temp) 23K256 (I,E-Temp -400 μ OUT MHz CLK MHz CLK MHz CLK 1.8V, Inputs tied to V ...
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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. 23A256/23K256 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: AC TEST CONDITIONS ...
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... HOLD TIMING CS 15 SCK HOLD FIGURE 1-2: SERIAL INPUT TIMING 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 23A256/23K256 LSB LSB out DS22100D-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 23A256/23K256 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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... FIGURE 2-2: BYTE WRITE SEQUENCE SCK Instruction High-Impedance SO © 2009 Microchip Technology Inc. 23A256/23K256 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 16-bit Address Data Out ...
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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 SCK Page X, Word Y DS22100D-page 16-bit Address Page X, Word Y Page X, Word 16-bit Address Page X, Word Y Page X, Word Page X, Word Page X, Word Page X, Word Y ...
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... FIGURE 2-5: SEQUENTIAL READ SEQUENCE SCK Instruction SCK SI Page X, Word SCK SI Page X+1, Word © 2009 Microchip Technology Inc 16-bit Address Page X+1, Word Page X+n, Word 23A256/23K256 Page X, Word Page X+1, Word Page X+n, Word DS22100D-page 9 ...
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... FIGURE 2-6: SEQUENTIAL WRITE SEQUENCE SCK Instruction SCK Data Byte DS22100D-page 16-bit Address Data Byte Data Byte Data Byte © 2009 Microchip Technology Inc. ...
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... SI High-Impedance SO © 2009 Microchip Technology Inc. 23A256/23K256 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. 23A256/23K256 3.5 Hold (HOLD) The HOLD pin is used to suspend transmission to the 23X256 while in the middle of a serial sequence without having to retransmit the entire sequence again ...
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... In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. DS22100D-page 14 Example: 23K256 e 3 I/P 1L7 0528 Example: 23K256I 0528 1L7 Example: K256 I837 1L7 © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. 23A256/23K256 PLO %RG\ >3',3@ DS22100D-page 15 ...
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... DS22100D-page 16 PP %RG\ >62,&@ α φ β © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. 23A256/23K256 PP %RG\ >62,&@ DS22100D-page 17 ...
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... DS22100D-page 18 PP %RG\ >76623@ φ I © 2009 Microchip Technology Inc. ...
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... Revision B (12/2008) Updates; Table 1-1, add Param. D011. Revision C (01/2009) Revised Section 2.5: Added a paragraph. Revision D (04/2009) Removed Preliminary status; Revised Current; Revised Table 1-1, Param. No. D009; Revised TSSOP Package marking; Revised Product ID. © 2009 Microchip Technology Inc. 23A256/23K256 Standby DS22100D-page 19 ...
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... NOTES: DS22100D-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. 23A256/23K256 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: 23A256/23K256 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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... Microchip Technology Inc. /XX X Examples: Package 23A256/23K256 . 23K256-I/ST = 256 Kbit, 3.6V Serial SRAM, Industrial temp., TSSOP package 23A256T-I/SN = 256 Kbit, 1.8V Serial SRAM, Industrial temp., Tape & Reel, SOIC package 23K256-E/ST = 256 Kbit, 3.6V Serial SRAM, Automotive temp., TSSOP package DS22100D-page 23 ...
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... NOTES: DS22100D-page 24 © 2009 Microchip Technology Inc. ...
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... Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. © 2009 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K ...
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... Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2009 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...