1996 Dec 18
23
Philips Semiconductors
Product specification
8-bit microcontrollers with DTMF
generator and 256 bytes EEPROM
PCA3354C; PCD3354A
Notes to the DC characteristics
1.
TONE output; EEPROM erase and write require V
DD
≥
2.5 V:
a) TONE output requires f
xtal
< 4 MHz in case DIV3 = 0.
b) TONE output requires f
xtal
< 12 MHz in case DIV3 = 1.
2.
V
IL
= V
SS
; V
IH
= V
DD
; open-drain outputs connected to V
SS
; all other outputs open:
a) Maximum values: external clock at XTAL1 and XTAL2 open-circuit.
b) Typical values: T
amb
= 25
°
C; crystal connected between XTAL1 and XTAL2.
3.
V
IL
= V
SS
; V
IH
= V
DD
; RESET, T1 and CE/T0 at V
SS
; crystal connected between XTAL1 and XTAL2; open-drain
outputs connected to V
SS
; all other outputs open.
4.
Values are specified for DTMF frequencies only (CEPT).
5.
Related to the Low Group Frequency (LGF) component (CEPT).
6.
After final testing the value of each EEPROM bit is typically logic 1.
7.
Verified on sampling basis.
8.
V
POR
is an option chosen by the user. Depending on its value, it may restrict the supply voltage range.
9.
Each device is tested on the condition: V
DD(min)
< V
POR
; to ensure a correct start-up, even for slow rising supply
voltages.
TONE output
(see Fig.14; notes 1 and 4)
V
HG(RMS)
V
LG(RMS)
f
f
HGF voltage (RMS values)
LGF voltage (RMS values)
frequency deviation
DC voltage level
output impedance
pre-emphasis of group
total harmonic distortion
158
125
0.6
1.5
181
142
0.5V
DD
100
2.0
25
205
160
0.6
500
2.5
mV
mV
%
V
dB
dB
V
DC
Z
O
G
v
THD
T
amb
= 25
°
C; note 5
EEPROM
(notes 1 and 6)
n
cyc
endurance (erase/write
cycles)
data retention
note 7
10
5
t
ret
10
years
Power-on-reset
(see Fig.15)
V
POR
Power-on-reset level variation
around chosen V
POR
V
POR
Power-on-reset level
note 8; for PCD3354A
0.5
0
+0.5
V
note 9; for PCA3354C
1.7
2.0
2.3
V
Oscillator
(see Fig.16)
g
mL
g
mM
g
mH
R
F
LOW transconductance
MEDIUM transconductance
HIGH transconductance
feedback resistor
V
DD
= 5 V
V
DD
= 5 V
V
DD
= 5 V
0.2
0.9
3
0.3
0.4
1.6
4.5
1.0
1.0
3.2
9.0
3.0
mS
mS
mS
M
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT