- SN65C3238PWR
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- 發(fā)布者:凌曄科技
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詳細(xì)信息
品牌:TI德州
封裝:TSSOP28
批號(hào):18+
數(shù)量*:800000
描述:描述
The ’C3238 devices consist of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, these devices include an always-active noninverting output (ROUT1B), which allows applications using the ring indicator to transmit data while the device is powered down. These devices operate at data signaling rates up to 1 Mbit/s, and at an increased slew-rate range of 24 V/μs to 150 V/μs.
Flexible control options for power management are featured when the serial-port and driver inputs are inactive. The auto-powerdown plus feature functions when FORCEON is low and FORCEOFF\ is high. During this mode of operation, if the device does not sense valid signal transitions on all receiver and driver inputs for 30 s, the built-in charge-pump and drivers are powered down, reducing the supply current to 1 μA. By disconnecting the serial port or placing the peripheral drivers off, auto-powerdown plus will occur if there is no activity in the logic levels for the driver inputs. Auto-powerdown plus can be disabled when FORCEON and FORCEOFF\ are high. With auto-powerdown plus enabled, the device automatically activates once a valid signal is applied to any receiver or driver input. INVALID\ is high (valid data) if any receiver input voltage is greater than 2.7 V or less than –2.7 V or has been between –0.3 V and 0.3 V for less than 30 μs. INVALID\ is low (invalid data) if all receiver input voltages are between –0.3 V and 0.3 V for more than 30 μs. Refer to Figure 5 for receiver input levels.
特性
Auto-powerdown Plus
Operate With 3-V to 5.5-V VCC Supply
Always-Active Noninverting Receiver Output (ROUT1B)
Support Operation From 250 kbit/s to 1 Mbit/s
Low Standby Current ...1 μA Typical
External Capacitors ...4 × 0.1 μF
Accept 5-V Logic Input With 3.3-V Supply
Inter-Operable With SN65C3243, SN75C3243
RS-232 Bus-Pin ESD Protection Exceeds ±15-kV Using Human-Body Model (HBM)
Applications
Battery-Powered Systems, PDAs, Notebooks, Subnotebooks, Laptops, Palmtop PCs, Hand-Held Equipment, Modems, and Printers
名稱:深圳市凌曄科技有限公司
地址:深圳市福田區(qū)中航路華強(qiáng)廣場(chǎng)C座13L
QQ:869030400
聯(lián)系人:張小姐
聯(lián)系電話:0755-83660559 13544017528
封裝:TSSOP28
批號(hào):18+
數(shù)量*:800000
描述:描述
The ’C3238 devices consist of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, these devices include an always-active noninverting output (ROUT1B), which allows applications using the ring indicator to transmit data while the device is powered down. These devices operate at data signaling rates up to 1 Mbit/s, and at an increased slew-rate range of 24 V/μs to 150 V/μs.
Flexible control options for power management are featured when the serial-port and driver inputs are inactive. The auto-powerdown plus feature functions when FORCEON is low and FORCEOFF\ is high. During this mode of operation, if the device does not sense valid signal transitions on all receiver and driver inputs for 30 s, the built-in charge-pump and drivers are powered down, reducing the supply current to 1 μA. By disconnecting the serial port or placing the peripheral drivers off, auto-powerdown plus will occur if there is no activity in the logic levels for the driver inputs. Auto-powerdown plus can be disabled when FORCEON and FORCEOFF\ are high. With auto-powerdown plus enabled, the device automatically activates once a valid signal is applied to any receiver or driver input. INVALID\ is high (valid data) if any receiver input voltage is greater than 2.7 V or less than –2.7 V or has been between –0.3 V and 0.3 V for less than 30 μs. INVALID\ is low (invalid data) if all receiver input voltages are between –0.3 V and 0.3 V for more than 30 μs. Refer to Figure 5 for receiver input levels.
特性
Auto-powerdown Plus
Operate With 3-V to 5.5-V VCC Supply
Always-Active Noninverting Receiver Output (ROUT1B)
Support Operation From 250 kbit/s to 1 Mbit/s
Low Standby Current ...1 μA Typical
External Capacitors ...4 × 0.1 μF
Accept 5-V Logic Input With 3.3-V Supply
Inter-Operable With SN65C3243, SN75C3243
RS-232 Bus-Pin ESD Protection Exceeds ±15-kV Using Human-Body Model (HBM)
Applications
Battery-Powered Systems, PDAs, Notebooks, Subnotebooks, Laptops, Palmtop PCs, Hand-Held Equipment, Modems, and Printers
名稱:深圳市凌曄科技有限公司
地址:深圳市福田區(qū)中航路華強(qiáng)廣場(chǎng)C座13L
QQ:869030400
聯(lián)系人:張小姐
聯(lián)系電話:0755-83660559 13544017528
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