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UPSD323X датащи(PDF) 156 Page - STMicroelectronics |
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UPSD323X датащи(HTML) 156 Page - STMicroelectronics |
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156 / 176 page ![]() µPSD323X 156/176 Table 119. External Data Memory AC Characteristics (with the 3V MCU Module) Note: 1. Conditions (in addition to those in Table 110, VCC = 3.0 to 3.6V): VSS = 0V; CL for Port 0, ALE and PSEN output is 100pF, for 5V devices, and 50pF for 3V devices; CL for other outputs is 80pF, for 5V devices, and 50pF for 3V devices) Table 120. A/D Analog Specification Symbol Parameter1 24MHz Oscillator Variable Oscillator 1/tCLCL = 8 to 24MHz Unit Min Max Min Max tRLRH RD pulse width 180 6tCLCL –70 ns tWLWH WR pulse width 180 6tCLCL –70 ns tLLAX2 Address hold after ALE 56 2tCLCL –27 ns tRHDX RD to valid data in 118 5tCLCL –90 ns tRHDX Data hold after RD 0 0 ns tRHDZ Data float after RD 63 2tCLCL –20 ns tLLDV ALE to valid data in 200 8tCLCL – 133 ns tAVDV Address to valid data in 220 9tCLCL – 155 ns tLLWL ALE to WR or RD 75 175 3tCLCL –50 tCLCL +50 ns tAVWL Address valid to WR or RD 67 4tCLCL –97 ns tWHLH WR or RD High to ALE High 17 67 tCLCL –25 tCLCL +25 ns tQVWX Data valid to WR transition 5 tCLCL –37 ns tQVWH Data set-up before WR 170 7tCLCL –122 ns tWHQX Data hold after WR 15 tCLCL –27 ns tRLAZ Address float after RD 0 0 ns Symbol Parameter Test Condition Min. Typ. Max. Unit AVREF Analog Power Supply Input Voltage Range VSS VCC V VAN Analog Input Voltage Range VSS –0.3 AVREF + 0.3 V IAVDD Current Following between VCC and VSS 200 µA CAIN Overall Accuracy ±2 l.s.b. NNLE Non-Linearity Error ±2 l.s.b. NDNLE Differential Non-Linearity Error ±2 l.s.b. NZOE Zero-Offset Error ±2 l.s.b. NFSE Full Scale Error ±2 l.s.b. NGE Gain Error ±2 l.s.b. TCONV Conversion Time at 8MHz clock 20 µs |
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