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Chaos Computer Club 1997 February
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hb1_106.txt
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1997-02-28
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Figure 11~ CCITT V.23 Handehake Timing
1
h.~ I & ~ I I +~t I ~ :1 -' ~'
l L 1 1 . "~
·~
'-~U 1 1 1
1W
!' _
1/1--1- ~- I ~ ~ ~ /illf / / / Al/ / / / /
~ 1
1 1 11 1 1 ' ~t ~.
~ _=,Tt─"-,I _,,~,,c,~,_ IJ __-
A..~
~/ / / / / / / / / Y ~ / / i1t ~ / Ä~-1 ~-t·~__; 1 / / ~ / 7
~ r~ ~
0 2 - c 3
MAXIMUM RATINGS
Ambiont Ten~peranlre under Bias
Vc~ Wi~t Respact tO VDBhD
0 10 +70 C
~ ~+6VJ─.4V
V88 w~th Respact lo VDGND -6V/~.4V
. . . _
411 Signal VotIages with Respect to VDGND ~ 5V
. .
The prodacts described b~v ~is specificabon include internal cirevitry designsd to protecl input aevices from damaging accumulaborts or
charge 11 is suggested. never~teless, that conventional pn?c~.utons be obserwed during storage. handling and uss in order to avo~d
exposure lo excassiva voltages.
SVasses above those listed under ' Absdute Ma~imum Rabngs" may causa permanenl damege lo ~e devicn This is a slrass rating
only and functional operabon ot ~te device al ~esa or any other cond~bons above ~osa indcaled in tha operabonal secions ot ~is
specif~'lion is not implied Exposure to absolute maximum rating cond~hons tor extended periods rnay aftect devic. reliability.
OPERATING RANGE
AmblenlT mperatut~t vcc V~n VAGND VDOND
O.C.TA. +70'C ~ +SOV-5~4 1 -50V+57. 1 OV '50rV 1 OV
DC CHARACIERISnCS
Digital Inpub: TD, RTS, MCo-MC4, DTR, RING, HTD, BRTS
Digital Outputs: RD, CTS. CD, BRD, BCTS, BCD
Pantmetere Dcacriptlon
VOH
VO'
VIH -
V'r
VIHC
VILC
VIHR
VILR
llL
kc
es
CaJT
CIN
Outpul HIGH Voltage
.-
Oulpul LOW Vohage
Input HIGH Vottage
Input LOW Volla9e
.
External Cbdl Ir~pul HIGH (XTAL1)
Extemell Clock trpul LOW (XTALt)
._
Extenul Resel Inpul HIBH (RESET)
Exiemsl Rese'lnpul LOW (RESET)
Digital Inpul LoaMage Cunent
vcc Suw~ Curenl
._
VOB Supply Cunenl
Outpul Capaatar~
Inpul Caparj~
Test Gonditions
IOFt - - 50 - A, CLD─50pF
IOL - t 2n~ CLD = 50pf
Uln
24
Typ
.
1 1'
-~_ r:
1 o.s 1
1 -0.5 ~
1 3.e 1
1 -1o 1
'1
O ~ YIN ~ VCC I
Ic~ 1.0M~z
.
~c ~ 1 0MHz
04
i vco 1
1 ~ 1
1 ~ol' 1
1 vet- 1.
16 06t 1
1- vcc 1
1 .08 1
1 1
I ~lo L
1 125..1.
r25 1
~ ---- - 1
1 15 1
1 15 1
~bx Unit
i
vOn' ,
| Vdls j
| Vr~s j
1
VraRs j
vOns---l
Volls
Volls I
vOnS :
~ !
n'A |
n~
pF
pF
RIN Tlnput Re61st ~| -1 6V c VRC ~ + 1 6V I - 1 - | | Kohms j
VRc | qwrabnr~t Input Sgnal
I ~
Vorr~c | Aklw0<t DC tnput Ollsel | REF VAG
1 -16 1 1~,.6 1 Vofts it
-30 1 1~ 30 1 mV ~
1
VTCOS | Outpul DC Ons~t ~