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ST7FLITE25F1B6 데이터시트(PDF) 130 Page - STMicroelectronics |
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ST7FLITE25F1B6 데이터시트(HTML) 130 Page - STMicroelectronics |
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130 / 166 page ![]() Electrical characteristics ST7LITE20F2 ST7LITE25F2 ST7LITE29F2 130/166 Doc ID 8349 Rev 5 Figure 66. Typical application with a crystal or ceramic resonator 13.6 Memory characteristics TA = -40°C to 85°C, unless otherwise specified. OSC2 OSC1 fOSC CL1 CL2 i2 RESONATOR WHEN RESONATOR WITH INTEGRATED CAPACITORS Rd ST7LITE2 Table 73. RAM and hardware registers Symbol Parameter Conditions Min Typ Max Unit VRM Data retention mode(1) HALT mode (or RESET) 1.6 −− V 1. Minimum VDD supply voltage without losing data stored in RAM (in HALT mode or under RESET) or in hardware registers (only in HALT mode). Guaranteed by construction, not tested in production. Table 74. Flash program memory Symbol Parameter Conditions Min Typ Max Unit VDD Operating voltage for Flash write/erase − 2.4 − 5.5 V tprog Programming time for 1~32 bytes(1) TA=−40 to +85°C − 510 ms Programming time for 1.5 kBytes TA=+25°C 0.24 0.48 s tRET Data retention(2) TA=+55°C (3) 20 −− years NRW Write erase cycles TA=+25°C 10K(4) −− cycles IDD Supply current Read / Write / Erase modes fCPU = 8MHz, VDD = 5.5V −− 2.6(5) mA No Read/No Write mode −− 100 μA Power down mode / HALT − 00.1 μA 1. Up to 32 bytes can be programmed at a time. 2. Data based on reliability test results and monitored in production. 3. The data retention time increases when the TA decreases. 4. Design target value pending full product characterization. 5. Guaranteed by Design. Not tested in production. |
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