need some info on some sort of pocket terminal

From: Geoffrey Thomas <geoffreythomas_at_onetel.net.uk>
Date: Fri Feb 13 07:14:12 2004

Just noticed this in my ccmp "saved " folder, this was rec'd just before a
holiday in Canada, and was forgotten. Do you need pinouts for N8T15 & 16 ?
They are
N8T15 :

Gate 1 13,12,11,10 i/p's 9 o/p.
Gate 2 1, 2 , 3 , 4 i/p's 5 o/p.
                    14 Vcc
                     8 Vee
                     7 Gnd.

N8T16 :
                           Gate 1 Gate 2
Output 13 2
Strobe 12 3
Hysteresis 11 4
MIL(+) 10 5
EIA 9 6
MIL(-) 8 1
Vcc 14
Gnd 7

The only caveat is that the MIL(-) connections are not clearly allocated
to either gate on the pinout. I " ASSUME " they are as shown as it seems
logical to keep all the conns. for each gate on one side of the package -
but you never know !
By the way my data shows for the N8T16

I/P voltage +- 25V
Sensitivity - 1.2/1.2V

Geoff.

----- Original Message -----
From: "Brent Hilpert" <hilpert_at_cs.ubc.ca>
To: <cctech_at_classiccmp.org>
Sent: Thursday, September 18, 2003 9:27 PM
Subject: Re: need some info on some sort of pocket terminal


> > There is an N8T15 & N8T16 chip on the board, are these similar to the
M1488 & M1489
> > rs232 line driver chips?
>
> ... found listings in an IC Master (1982) (sorry no pinouts):
>
> N8T15 (Signetics): Line drivers, single-ended (2 per device)
> / 4-input; RS232B,C; MIL188 / Output +-6V / Power Supply +-12V
>
> N8T16 (Signetics): Line receivers (2 per device)
> / hysteresis EIA/MIL / Input Threshold +-2V / Supply Voltage 5V
Received on Fri Feb 13 2004 - 07:14:12 GMT