数据搜索系统,热门电子元器件搜索 |
|
MC14C89B 数据表(PDF) 3 Page - ON Semiconductor |
|
MC14C89B 数据表(HTML) 3 Page - ON Semiconductor |
3 / 6 page MC14C89B, AB 3 MOTOROLA ANALOG IC DEVICE DATA Figure 1. Timing Diagram tT tPLH 50% Vout 3.0 V 0 V S.G. 1.5 V tPHL Vout VOL VOH RC (Open) 90% S.G. 50% 10% VCC 50 pF tT NOTES: S.G. set to: f = 20 kHz; Duty Cycle = 50%; tr , tf p 5.0 ns STANDARDS COMPLIANCE The MC14C89B and MC14C89AB are designed to comply with EIA–232–E (formerly RS–232), the newer EIA–562 (which is a higher speed version of the EIA–232), and CCITT V.28 Recommendations. EIA–562 was written around modern integrated circuit technology, whereas EIA–232 retains many of the specifications written around the electro–mechanical circuitry in use at the time of its creation. Yet the user will find enough similarities to allow a certain amount of compatibility among equipment built to the two standards. Following is a summary of the key specifications relating to the systems and the receivers. Parameter EIA–232–E EIA–562 Max Data Rate 20 kBaud 38.4 kBaud Asynchronous 64 kBaud Synchronous Max Cable Length 50 feet Based on cable capacitance/data rate Transition Region –3.0 V to +3.0 V –3.0 V to +3.0 V MARK (one, off) More negative than –3.0 V More negative than –3.3 V SPACE (zero, on) More positive than +3.0 V More positive than +3.3 V Fail Safe Output = Binary 1 Output = Binary 1 Open Circuit Input Voltage t2.0V Not Specified Slew Rate (at the driver) p30 V/µs anywhere on the waveform p30 V/µs anywhere on the waveform, q4.0 V/µs between +3.0 V and –3.0 V Loaded Output Voltage (at the driver) 5.0 V p VOp 15 V for loads between 3.0 k Ω and 7.0 kΩ VO q 3.7 V for a load of 3.0 kΩ Figure 2. Typical Output versus Supply Voltage Figure 3. Typical Output Voltage versus Temperature MC14C89AB MC14C89B TA = 25°C –40 VOH(Iout = –20 µA) VCC, SUPPLY VOLTAGE (V) VOL(Iout = 3.2 mA) VOH(Iout = –3.2 mA) 4.5 0 1.0 2.0 3.0 4.0 5.0 25 TA, AMBIENT TEMPERATURE (°C) 57.5 –7.5 85 5.5 5.3 5.1 4.9 4.7 0 1.0 2.0 3.0 4.0 5.0 VOH(Iout = –20 µA) VOH(Iout = –3.2 mA) VOL(Iout = 3.2 mA) MC14C89AB MC14C89B VCC = 5 V |
类似零件编号 - MC14C89B |
|
类似说明 - MC14C89B |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |