PCA3354C Datasheet, PDF (19/32 Pages) NXP Semiconductors – 8-bit microcontrollers with DTMF generator and 256 bytes EEPROM

Philips Semiconductors
8-bit microcontrollers with DTMF
generator and 256 bytes EEPROM
Product specification
PCA3354C; PCD3354A
13 SUMMARY OF I/O PORTS AND MASK OPTIONS
All standard quasi-bidirectional I/O ports are available; see “PCD33xxA Family” data sheet.
• Port 0: 8 parallel port lines P0.0 to P0.7
• Port 1: 8 parallel port lines P1.0 to P1.7
• Port 2: 4 parallel port lines P2.0 to P2.3.
In addition to the standard ports, 2 derivative I/O ports are available:
• Derivative Port 0: 8 parallel port lines DP0.0 to DP0.7 (register DP0L)
• Derivative Port 1: 8 parallel port lines DP1.0 to DP1.7 (register DP1L).
The port options and the other ROM mask options are listed in Table 24. See Table 25 for the addresses of DP0L and
DP1L.
Table 24 ROM mask options
FUNCTION IMPLEMENTED IN ROM
Program/data
OPTION
Any mix of instructions and data up to ROM size of 8 kbytes.
Port Output
P0.0 to P0.7
P1.0 to P1.6
P1.7/MDY; note 1
P2.0 to P2.3
DP0.0 to DP0.7
DP1.0 to DP1.6
DP1.7/DCO; note 2
standard
standard
standard
standard
standard
standard
standard
open-drain
open-drain
open-drain
open-drain
open-drain
open-drain
open-drain
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
push-pull
Port State after reset
P0.0 to P0.7
P1.0 to P1.6
P1.7/MDY
P2.0 to P2.3
DP0.0 to DP0.7
DP1.0 to DP1.6
DP1.7/DCO
Oscillator
Transconductance
Power-on-reset
Power-on-reset voltage level: V_POR
set
reset
−
set
reset
−
set
reset
−
set
reset
−
set
reset
−
set
reset
−
set
reset
−
LOW (g_mL)
MEDIUM (g_mM)
HIGH (g_mH)
1.2 to 3.6 V in increments of 100 mV; OFF
Notes
1. If standard (Option 1) or push-pull (Option 3) output is chosen, the P1.7/MDY output becomes a push-pull output.
If open-drain (Option 2) is chosen the P1.7/MDY output becomes an open-drain output.
2. If standard (Option 1) or push-pull (Option 3) output is chosen, the DP1.7/DCO output becomes a push-pull output.
If open-drain (Option 2) is chosen the DP1.7/DCO output becomes an open-drain output.
1996 Dec 18
19