summaryrefslogtreecommitdiffstatshomepage
path: root/src/emu/netlist/devices/nld_7400.h
blob: 078ceafd54bed3223252bc9abf3fe74a8df27cf5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
// license:GPL-2.0+
// copyright-holders:Couriersud
/*
 * nld_7400.h
 *
 *  DM7400: Quad 2-Input NAND Gates
 *
 *          +--------------+
 *       A1 |1     ++    14| VCC
 *       B1 |2           13| B4
 *       Y1 |3           12| A4
 *       A2 |4    7400   11| Y4
 *       B2 |5           10| B3
 *       Y2 |6            9| A3
 *      GND |7            8| Y3
 *          +--------------+
 *                  __
 *              Y = AB
 *          +---+---++---+
 *          | A | B || Y |
 *          +===+===++===+
 *          | 0 | 0 || 1 |
 *          | 0 | 1 || 1 |
 *          | 1 | 0 || 1 |
 *          | 1 | 1 || 0 |
 *          +---+---++---+
 *
 *  Naming conventions follow National Semiconductor datasheet
 *
 */

#include "nld_signal.h"

#ifndef NLD_7400_H_
#define NLD_7400_H_

#define TTL_7400_NAND(_name, _A, _B)                                                \
        NET_REGISTER_DEV(7400, _name)                                               \
        NET_CONNECT(_name, A, _A)                                                   \
        NET_CONNECT(_name, B, _B)

NETLIB_SIGNAL(7400, 2, 0, 0);

#endif /* NLD_7400_H_ */