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CY14B512Q2A-SXI Datasheet(PDF) 3 Page - Cypress Semiconductor |
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CY14B512Q2A-SXI Datasheet(HTML) 3 Page - Cypress Semiconductor |
3 / 32 page CY14C512Q CY14B512Q CY14E512Q Document Number: 001-65267 Rev. *D Page 3 of 32 Pinouts Figure 1. 8-pin SOIC pinout [2, 3, 4] Figure 2. 16-pin SOIC pinout HOLD SCK 1 2 3 4 5 CS 8 7 6 VCC SI SO WP Top View not to scale CY14X512Q1A VSS HOLD SCK 1 2 3 4 5 CS 8 7 6 VCC SI SO Top View not to scale CY14X512Q2A V CAP VSS NC V WP VCAP 1 2 3 4 5 6 7 8 9 10 11 12 13 NC 16 15 14 VCC SO SI SCK CS HSB NC NC NC HOLD NC Top View not to scale SS CY14X512Q3A Pin Definitions Pin Name [2, 3, 4] I/O Type Description CS Input Chip Select. Activates the device when pulled LOW. Driving this pin high puts the device in low power standby mode. SCK Input Serial Clock. Runs at speeds up to a maximum of fSCK. Serial input is latched at the rising edge of this clock. Serial output is driven at the falling edge of the clock. SI Input Serial Input. Pin for input of all SPI instructions and data. SO Output Serial Output. Pin for output of data through SPI. WP Input Write Protect. Implements hardware write protection in SPI. HOLD Input HOLD Pin. Suspends Serial Operation. HSB Input/Output Hardware STORE Busy: Output: Indicates busy status of nvSRAM when LOW. After each Hardware and Software STORE operation HSB is driven HIGH for a short time (tHHHD) with standard output high current and then a weak internal pull up resistor keeps this pin HIGH (External pull up resistor connection optional). Input: Hardware STORE implemented by pulling this pin LOW externally. VCAP Power supply AutoStore Capacitor. Supplies power to the nvSRAM during power loss to STORE data from the SRAM to nonvolatile elements. If AutoStore is not needed, this pin must be left as No Connect. It must never be connected to ground. NC No connect No Connect: This pin is not connected to the die. VSS Power supply Ground VCC Power supply Power supply Notes 2. HSB pin is not available in 8-pin SOIC packages (CY14X512Q1A/CY14X512Q2A). 3. CY14X512Q1A part does not have VCAP pin and does not support AutoStore. 4. CY14X512Q2A part does not have WP pin. |
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