KM23C8105D(g) cmos mask rom pin name pin function a 0 - a 1 page address inputs a 2 - a 18 address inputs q 0 - q 14 data outputs q 15 /a -1 output 15(word mode)/ lsb address(byte mode) bhe word/byte selection ce chip enable oe output enable v cc power ( +5v) v ss ground n.c no connection 8m-bit (1mx8 /512kx16) cmos mask rom the KM23C8105D(g) is a fully static mask programmable rom fabricated using silicon gate cmos process technology, and is organized either as 1,048,576 x 8 bit(byte mode) or as 524,288 x 16 bit(word mode) depending on bhe voltage level.(see mode selection table) this device includes page read mode function, page read mode allows 4 words (or 8bytes) of data to read fast in the same page, ce and a 2 ~ a 18 should not be changed. this device operates with a 5v single power supply, and all inputs and outputs are ttl compatible. because of its asynchronous operation, it requires no external clock assuring extremely easy operation. it is suitable for use in program memory of microprocessor, and data memory, character generator. the KM23C8105D is packaged in a 42-dip and the KM23C8105Dg in a 44-sop. general description features switchable organization 1,048,576 x 8(byte mode) 524,288 x 16(word mode) fast access time random access : 100ns(max.) page access : 30ns(max.) 4 words / 8 bytes page access supply voltage : single +5v current consumption operating : 80ma(max.) standby : 50 m a(max.) fully static operation all inputs and outputs ttl compatible three state outputs package -. KM23C8105D : 42-dip-600 -. KM23C8105Dg : 44-sop-600 a 18 x a 0~ a 1 and decoder buffers a 2 y and decoder buffers memory cell sense amp. control logic matrix (524,288x16/ 1,048,576x8) data out buffers a -1 ce oe bhe . . . . . . . . q 0 /q 8 q 7 /q 15 . . . pin configuration functional block diagram n.c a 18 a 17 a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 ce v ss oe q 0 q 8 q 1 q 9 q 4 q 12 q 5 q 13 q 6 v ss q 14 q 7 q 15 /a -1 sop KM23C8105Dg 1 2 44 43 3 4 42 41 5 6 40 39 7 8 38 37 9 10 36 35 11 12 34 33 13 14 32 31 15 16 30 29 17 18 28 27 19 20 26 25 21 22 24 23 q 2 q 10 q 3 q 11 n.c n.c a 8 a 9 a 10 a 11 a 12 a 13 a 14 a 15 a 16 bhe v cc q 11 a 18 a 17 a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 ce v ss oe q 0 q 8 q 1 q 9 dip KM23C8105D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 q 2 q 10 q 3 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 q 4 q 12 q 5 q 13 q 6 v ss q 14 q 7 q 15 /a -1 a 9 a 10 a 11 a 12 a 13 a 14 a 15 a 16 bhe v cc n.c a 8
KM23C8105D(g) cmos mask rom absolute maximum ratings note : permanent device damage may occur if "absolute maximum ratings" are exceeded. functional operation should be restricted to th e conditions as detailed in the operational sections of this data sheet. exposure to absolute maximum rating conditions for extend ed periods may affect device reliability. item symbol rating unit voltage on any pin relative to v ss v in -0.3 to +7.0 v temperature under bias t bias -10 to +85 c storage temperature t stg -55 to +150 c recommended operating conditions (voltage reference to v ss , t a =0 to 70 c) item symbol min typ max unit supply voltage v cc 4.5 5.0 5.5 v supply voltage v ss 0 0 0 v dc characteristics note : minimum dc voltage(v il ) is -0.3v an input pins. during transitions, this level may undershoot to -2.0v for periods <20ns. maximum dc voltage on input pins(v ih ) is v cc +0.3v which, during transitions, may overshoot to v cc +2.0v for periods <20ns. parameter symbol test conditions min max unit operating current i cc ce = oe =v il , all outputs open - 80 ma standby current(ttl) i sb1 ce =v ih , all outputs open - 1 ma standby current(cmos) i sb2 ce =v cc , all outputs open - 50 m a input leakage current i li v in =0 to v cc - 10 m a output leakage current i lo v out =0 to v cc - 10 m a input high voltage, all inputs v ih 2.2 v cc +0.3 v input low voltage, all inputs v il -0.3 0.8 v output high voltage level v oh i oh =-400 m a 2.4 - v output low voltage level v ol i ol =2.1ma - 0.4 v mode selection ce oe bhe q 15 /a -1 mode data power h x x x standby high-z standby l h x x operating high-z active l l h output operating q 0 ~q 15 : dout active l input operating q 0 ~q 7 : dout q 8 ~q 14 : hi-z active capacitance (t a =25 c, f=1.0mhz) note : capacitance is periodically sampled and not 100% tested. item symbol test conditions min max unit output capacitance c out v out =0v - 12 pf input capacitance c in v in =0v - 12 pf
KM23C8105D(g) cmos mask rom test conditions item value input pulse levels 0.6v to 2.4v input rise and fall times 10ns input and output timing levels 0.8v and 2.0v output loads 1 ttl gate and c l =100pf ac characteristics (t a =0 c to +70 c, v cc =5.0v 10%, unless otherwise noted.) read cycle note : page address is determined as below. word mode (bhe = v ih ) : a 0 , a 1 byte mode (bhe = v il ) : a- 1 , a 0 , a 1 item symbol KM23C8105D(g)-10 KM23C8105D(g)-12 KM23C8105D(g)-15 unit min max min max min max read cycle time t rc 100 120 150 ns chip enable access time t ace 100 120 150 ns address access time t aa 100 120 150 ns page address access time t pa 30 50 70 ns output enable access time t oe 30 50 70 ns output or chip disable to output high-z t df 20 20 30 ns output hold from address change t oh 0 0 0 ns
KM23C8105D(g) cmos mask rom timing diagram read add ce oe d out a 0 ~a 18 a -1(*1) d 0 ~d 7 d 8 ~d 15(*2) page read add1 add2 valid data valid data t oh t df(*3) oe add d out ce add a 0, a 1 a 2 ~a 18 1 st 2 nd 3 rd t df(*3) t rc t ace t oe t aa notes : *1. byte mode only. a -1 is least significant bit address.(bhe = v il ) *2. word mode only.(bhe = v ih ) *3. t df is defined as the time at which the outputs achieve the open circuit condition and is not referenced to v oh or v ol level. t aa valid data valid data valid data t pa valid data a -1(*1) d 0~ d 7 d 8~ d 15(*2) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
KM23C8105D(g) cmos mask rom 0.81 #1 42-dip-600 #42 13.80 0.20 0.543 0.008 52.42 0.20 2.064 0.008 ( ) 0.032 1 5 . 2 4 0 . 6 0 0 + 0.10 max 52.82 2.080 0.25 - 0.05 + 0.004 0.010 - 0.002 2.54 0.100 max 3.91 0.20 0.154 0.008 5.08 0.200 min 0.015 0.38 0.122 0.012 3.1 0.30 #21 #22 1.27 .10 0.050 0.004 0.46 0.10 0.018 0.004 0~15 package dimensions 44-sop-600 #44 28.50 0.20 1.122 0.008 max 28.95 1.140 max 2.80 0.20 0.110 0.008 3.10 0.122 min 0.002 0.05 0.004 max 0.10 max #1 0.915 ( ) 0.036 1 5 . 2 4 0 . 6 0 0 12.60 0.20 0.496 0.008 0.80 0.20 0.031 0.008 + 0.10 0.20 - 0.05 + 0.004 0.008 - 0.002 16.04 0.30 0.631 0.012 #23 #22 1.27 0.050 0~8 0.40 0.016 + 0.100 - 0.050 + 0.004 - 0.002
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