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? semiconductor msm82c43 1/13 ? semiconductor msm82c43 input/output port expander general description the msm82c43 is an input/output port expander device based on cmos technology and designed to operate at low power consumption levels. in systems employing the msm80c48/49 8Cbit single chip microcomputers, 4Cbit data can be expanded by dividing between four i/o lines by executing the movda, p p , a and orldp p , a instructions. features ? cmos technology for low power consumption ? 2.5 to 6 v single power supply (dependent on msm80c48/49 operating frequency.) ? fully static operation ? bidirectional i/o ports ? ttl coimpatible (ports 4 thru 7) ? functional compatiblity with intel i8243 ? package options 24 pin plastic dip (dip24CpC600-2.54) : (product name : msm82c43rs) 24 pin plastic sop (sop24CpC430C1.27-k) : (product name : MSM82C43GS-K) e2e1034 -27-y4 this version: jan. 1998 previous version: nov. 1996
? semiconductor msm82c43 2/13 latch input buffer latch input buffer latch input buffer latch input buffer address decoder instruction decoder and/or logic temp mux port 2 control reset circuit prog cs 4 4 4 4 4 4 4 port 4 port 5 port 6 port 7 functional blook diagram
? semiconductor msm82c43 3/13 pin configuration (top view) msm82c43rs 24-pin plastic dip 1 2 3 4 5 6 7 8 9 10 11 12 p50 p40 p41 p42 p43 cs prog p23 22 p21 p20 gnd v cc p51 p52 p53 p60 p61 p62 p63 p73 p72 p71 p70 24 23 22 21 20 19 18 17 16 15 14 13 msm82c43gs 24 pin plastic small outline package 1 2 3 4 5 6 7 8 9 10 11 12 p50 p40 p41 p42 p43 cs prog p23 22 p21 p20 gnd v cc p51 p52 p53 p60 p61 p62 p63 p73 p72 p71 p70 24 23 22 21 20 19 18 17 16 15 14 13
? semiconductor msm82c43 4/13 absolute maximum ratings parameter symbol conditions rating unit supply voltage input voltage storage temperature v cc v i t stg ta=25 c ta=25 c C0.5 to 7 C0.3 to 7 C65 to +150 v v c recommended operating conditions parameter symbol conditions range unit supply voltage ambient temperature fanCout v cc t a n mos load 2.5 to 6*1 C40 to +85 10 v c ttl load 3*2
? semiconductor msm82c43 5/13 electric characteristics dc characteristics parameter symbol conditions unit "l" input voltage v il v v min. typ. max. C0.5 0.13v cc "h" input voltage v ih v v 0.4v cc v cc "l" output voltage ports 4-7 "l" output voltage ports 7 "l" output voltage ports 2 "l" total output current from ports 4-7*3 "h" output voltage ports 4-7 "h" output voltage ports 2 "h" output voltage ports 4-7 "h" output voltage ports 2 input leak current*3 input leak current*6 power supply current i cc v ol1 v ol2 v ol3 i ol v oh1 v oh2 v oh1 v oh2 i il1 i il2 i ol =5ma i ol =20ma i ol =0.9ma 5ma/1pin i oh =C240 m a i oh =C100 m a i oh =C40 m a i oh =C20 m a 0v in v cc 0v in v cc "standby stop no accessing for continuous msm80c49 access- ing at 11 mh z 0.75v cc 0.75v cc 0.93v cc 0.93v cc C10 C10 1 5 0.45 1 0.45 80 20 10 100 2 ma v v v v v v v m a m a m a ma (v cc =4.0v to 6.0v, ta=C40 c to +85 c) *1 the supply voltage during operation is dependent on msm80c49 operating frequency. *2 except p20 thru p23. *3 p40 thru p43, p50 thru p53, p60 thru p63, p70 thru p73. *4 p70 thru p73. *5 p20 thru p23. *6 p20 thru p23, cs, prog.
? semiconductor msm82c43 6/13 ac characteristics parameter symbol conditions unit port control setting time (up to prog falling edge.) port control holding time (up to prog falling edge.) output data setting time t a t b t c 80pf load 20pf load 80pf load ns ns (v cc =4.0v to 6.0v, ta=C40 c to +85 c) min. max. output data holding time input data holding time prog pulse width cs valid time (before and after prog) output data valid time (at ports 4-7) input data holding time (at ports 4-7) input data holding time (from prog falling edge) t d t h t k t cs t po t lp1 t acc 20pf load 20pf load 100pf load 80pf load 50 200 20 0 700 50 100 150 700 650 ns ns ns ns ns ns ns ns 60
? semiconductor msm82c43 7/13 timing chart instruction float data float instruction output data output data previous output data input valid prog p20 thru p23 (when writing) p20 thru p23 (when reading) p40 thru p43 | p70 thru p73 (when writing) p40 thru p43 | p70 thru p73 (when reading) cs t k t b t a t c t d t acc t h t po t lpi t lpi t cs t cs
? semiconductor msm82c43 8/13 pin functions pin prog cs p20 C p23 p40 C p43 p50 C p53 p60 C p63 p70 C p73 v cc gnd function clock input from msm80c49. when prog is changed from "h" to "l", msm82c43 starts operating in accordance with an order from msm80c49. input for chip select. outputs and internal status cannot be changed when cs is "h". 4-bit bidirectional i/o ports. when connected to p20 thru p23 of msm80c49, direct data transfer from port to accumulator and from accumulator to port is possible. 4-bit bidirectional i/o ports. data is latched statistically when output to ports, but is only valid while prog is at "l" level when input. +5v power supply ground functions power-on reset mode upon powered on, ports to 7 are 3-stated, and 2 is put into an input mode. write mode execution of movdpp, a, orldpp, a, anldpp, and a by msm80c49 enables direct output of accumulator contents to ports 4 thru 7, and output to the ports after oring or anding with port data. the port data is latched statistically at this time and remains unchanged until execution of the next instruction. read mode execution of movda andpp results in data of ports 4 thru 7 being accepted by the accmulator. note that port data is valid only while prog is at "l" level. when at "h" level, ports 4 thru 7 are switched to tristate and port 2 is switched to input mode. address and instruction code instruction port p23 p22 p21 p20 read port 4 00 00 write port 5 01 01 or port 6 10 10 and port 7 11 11
? semiconductor msm82c43 9/13 msm82c43 multiple connection example port prog p20 Cp23 cs prog p20 Cp23 cs prog p20 Cp23 cs prog p20 Cp23 msm80c49 selector
? semiconductor msm82c43 10/13 output characteristics standard dc characteristics output "h" voltage (v oh ) vs. output currnt (i oh ) 5 4 3 2 1 0 C1C2C3C4C5 output current i oh (ma) output "h" voltage v oh (v) ta=25c t po , t h , and t acc vs. power supply voltage (v cc ) 0 3 power supply voltage (v cc ) t po , t acc , t h (ns) ta=25c 56 100 200 300 400 500 600 700 t h t acc t po output "l" voltage (v oh ) vs. output currnt (i oh ) 5 4 3 2 1 0 C1C2C3C4C5 output current i ol (ma) output "l" voltage v ol (v) ta=25c operating frequency vs. power supply voltage (i cc ) 2 1 136 11 msm80c49 o p eratin g fre q uenc y ( mhz ) power supply current i cc (ma) ta=25c 0 note: the direction which the output current flows through the device is taken as the positive direction.
? semiconductor msm82c43 11/13 guaranteed msm82c43 operating range 23456 guaranteed operating range ta=C40 to +85c msm80c49 operating range (mhz) power supply voltage (v cc ) 3 6 11
? semiconductor msm82c43 12/13 (unit : mm) package dimensions notes for mounting the surface mount type package the sop, qfp, tsop, soj, qfj (plcc), shp and bga are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. therefore, before you perform reflow mounting, contact okis responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). dip24-c-600-2.54 24 13 12 1 30.8max 15.11 0.25 1.27typ 1.27typ 0.50 0.10 2.54 2.80 0.40 5.10max 0.51min 2.54min 0.25 m 15.24 +0.15 0.25-0.05 index mark seating plane
? semiconductor msm82c43 13/13 (unit : mm) notes for mounting the surface mount type package the sop, qfp, tsop, soj, qfj (plcc), shp and bga are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. therefore, before you perform reflow mounting, contact okis responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). sop24-p-430-1.27-k package material lead frame material pin treatment solder plate thickness package weight (g) epoxy resin 42 alloy solder plating 5 m m or more 0.58 typ. mirror finish

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