diff options
Diffstat (limited to 'src/lib/netlist/macro/nlm_ttl74xx.cpp')
-rw-r--r-- | src/lib/netlist/macro/nlm_ttl74xx.cpp | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/lib/netlist/macro/nlm_ttl74xx.cpp b/src/lib/netlist/macro/nlm_ttl74xx.cpp index c72e6ee9ce2..f06320504f0 100644 --- a/src/lib/netlist/macro/nlm_ttl74xx.cpp +++ b/src/lib/netlist/macro/nlm_ttl74xx.cpp @@ -301,6 +301,47 @@ NETLIST_START(TTL_7427_DIP) ) NETLIST_END() +/* + * DM7400: Quad 2-Input NAND Gates + * + * __ + * Y = AB + * +---+---++---+ + * | A | B || Y | + * +===+===++===+ + * | 0 | 0 || 1 | + * | 0 | 1 || 1 | + * | 1 | 0 || 1 | + * | 1 | 1 || 0 | + * +---+---++---+ + * + * Naming conventions follow National Semiconductor datasheet + * + * FIXME: Same as 7400, but drains higher output currents. + * Netlist currently does not model over currents (should it ever?) + */ + +NETLIST_START(TTL_7437_DIP) + TTL_7437_GATE(s1) + TTL_7437_GATE(s2) + TTL_7437_GATE(s3) + TTL_7437_GATE(s4) + + DUMMY_INPUT(GND) + DUMMY_INPUT(VCC) + + DIPPINS( /* +--------------+ */ + s1.A, /* A1 |1 ++ 14| VCC */ VCC.I, + s1.B, /* B1 |2 13| B4 */ s4.B, + s1.Q, /* Y1 |3 12| A4 */ s4.A, + s2.A, /* A2 |4 7400 11| Y4 */ s4.Q, + s2.B, /* B2 |5 10| B3 */ s3.B, + s2.Q, /* Y2 |6 9| A3 */ s3.A, + GND.I, /* GND |7 8| Y3 */ s3.Q + /* +--------------+ */ + ) +NETLIST_END() + NETLIST_START(TTL74XX_lib) @@ -428,6 +469,26 @@ NETLIST_START(TTL74XX_lib) TT_FAMILY("74XX") TRUTHTABLE_END() + /* FIXME: Same as 7400, but drains higher output currents. + * Netlist currently does not model over currents (should it ever?) + */ + + TRUTHTABLE_START(TTL_7437_GATE, 2, 1, 0, "") + TT_HEAD("A,B|Q ") + TT_LINE("0,X|1|22") + TT_LINE("X,0|1|22") + TT_LINE("1,1|0|15") + TT_FAMILY("74XX") + TRUTHTABLE_END() + + TRUTHTABLE_START(TTL_7437_NAND, 2, 1, 0, "A,B") + TT_HEAD("A,B|Q ") + TT_LINE("0,X|1|22") + TT_LINE("X,0|1|22") + TT_LINE("1,1|0|15") + TT_FAMILY("74XX") + TRUTHTABLE_END() + LOCAL_LIB_ENTRY(TTL_7400_DIP) LOCAL_LIB_ENTRY(TTL_7402_DIP) LOCAL_LIB_ENTRY(TTL_7404_DIP) @@ -436,4 +497,5 @@ NETLIST_START(TTL74XX_lib) LOCAL_LIB_ENTRY(TTL_7411_DIP) LOCAL_LIB_ENTRY(TTL_7416_DIP) LOCAL_LIB_ENTRY(TTL_7427_DIP) + LOCAL_LIB_ENTRY(TTL_7437_DIP) NETLIST_END() |