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CH341A Scheda tecnica(PDF) 10 Page - List of Unclassifed Manufacturers |
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CH341A Scheda tecnica(HTML) 10 Page - List of Unclassifed Manufacturers |
10 / 14 page The DataSheet of CH341 (the first) 10 temperature VCC=V3=3.3V -40 85 ℃ TS Storage temperature -55 125 ℃ VCC Voltage source (VCC connects to power, GND to ground) -0.5 6.5 V VIO The voltage of input or output pin -0.5 VCC+0.5 V 6.2. Electrical parameter (test conditions: TA=25℃, VCC=5V, excluding pin connection of USB bus) (If the source voltage is 3.3V, multiply 40% of the current parameter) Name Parameter note Min. Typical Max. Units V3 doesn’t connect to VCC 4.5 5 5.3 V VCC Source voltage V3 connect to VCC 3.3 3.3 3.6 V ICC Total source current when working 15 30 mA ISLP Total source current when USB suspending 0.05 0.15 0.5 mA VIL Input Voltage LOW -0.5 0.7 V VIH Input Voltage HIGH 2.0 VCC+0.5 V VOL Output Voltage LOW (draw 4mA current) 0.5 V VOH Output Voltage HIGH (output 4mA current) (Output 100uA current during chip reset) VCC-0.5 V IUPs SCL and SDA output current HIGH 100 200 500 uA IUP Input current with pull-up resistor internal 30 70 160 uA IDN Input current with pull-down resistor internal -50 -180 uA VR Restrict voltage when power-up reset 2.3 2.6 2.9 V 6.3. Basic time sequence parameter (test conditions: TA=25℃, VCC=5V or VCC=V3=3.3V) Name Parameter note Min. Typical Max. Units FCLK Frequency of input clock in XI 11.98 12.00 12.02 MHz TPR Reset time of power-up 20 40 mS TRI Effective signal width of external reset input 100 nS TRD Reset delay time of external reset input 30 mS 6.4. Print interface time sequence parameter (test conditions: TA=25℃, VCC=5V or VCC=V3=3.3V, refer to the accessorial image) Name Parameter note Min. Typical Max. Units Low speed 800 840 10000 nS TWPRT STB# low-level width High speed 400 420 10000 nS Low speed 800 nS TSPRT STB# high-level width High speed 560 nS TDS Data to STB# Low set-up time 240 nS TDH Data hold time after STB# high 240 nS TBZ BUSY low to STB# low 160 nS TWA ACK# pulse width 100 nS TAK ACK# high to STB# low 160 nS |
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