PHILIPS PCD3349

INTEGRATED CIRCUITS
DATA SHEET
PCD3349A
8-bit microcontroller with
DTMF generator
Product specification
Supersedes data of 1996 Dec 18
File under Integrated Circuits, IC03
1998 May 11
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
CONTENTS
1
FEATURES
2
GENERAL DESCRIPTION
3
ORDERING INFORMATION
4
BLOCK DIAGRAM
5
PINNING INFORMATION
5.1
5.2
Pinning
Pin description
6
FREQUENCY GENERATOR
6.1
6.2
6.3
6.4
6.5
Frequency generator derivative registers
Frequency registers
DTMF frequencies
Modem frequencies
Musical scale frequencies
7
TIMING
8
RESET
9
STOP MODE
10
IDLE MODE
11
INSTRUCTION SET
12
SUMMARY OF MASK OPTIONS
13
LIMITING VALUES
14
HANDLING
15
DC CHARACTERISTICS
16
AC CHARACTERISTICS
17
PACKAGE OUTLINES
18
SOLDERING
18.1
18.2
18.3
Introduction
DIP
SO
19
DEFINITIONS
20
LIFE SUPPORT APPLICATIONS
1998 May 11
2
PCD3349A
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
1
2
FEATURES
• 8-bit CPU, ROM, RAM, I/O in a single 28-lead package
PCD3349A
GENERAL DESCRIPTION
The PCD3349A provides 4 kbytes of Program Memory,
224 bytes of RAM and 20 I/O lines.
• 4-kbyte ROM
• 224-byte RAM
The PCD3349A is a microcontroller which has been
designed primarily for telecom applications. It includes an
on-chip dual tone multi-frequency (DTMF) generator.
• Over 100 instructions (based on MAB8048) all of 1 or 2
cycles
• 20 quasi-bidirectional I/O port lines
The instruction set is based on that of the MAB8048 and is
software compatible with the PCD33xxA family.
• 8-bit programmable Timer/event counter 1
This data sheet details the specific properties of the
PCD3349A. The shared characteristics of the PCD33xxA
family of microcontrollers are described in the “PCD33xxA
Family” data sheet and also in “Data Handbook IC03;
Section PCD33xxA Family”, which should be read in
conjunction with this publication.
• 2 single-level vectored interrupts:
– external
– Timer/event counter 1
• Two test inputs, one of which also serves as the external
interrupt input
• DTMF tone generator
• Reference for supply and temperature-independent
TONE output
• Filtering for low output distortion (CEPT compatible)
• Power-on-reset
• Stop and Idle modes
• Supply voltage: 1.8 to 6 V (DTMF TONE output from
2.5 V)
• Low standby voltage of 1 V
• Low Stop mode current of 1 µA (typical)
• Clock frequency: 1 to 16 MHz (3.58 MHz for DTMF
suggested)
• Manufactured in silicon gate CMOS process.
3
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
DESCRIPTION
VERSION
PCD3349AP
DIP28
plastic dual in-line package; 28 leads (600 mil)
SOT117-1
PCD3349AT
SO28
plastic small outline package; 28 leads; body width 7.5 mm
SOT136-1
1998 May 11
3
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8
4
8
4 kbytes
PORT 1
BUFFER
PORT 2
BUFFER
TONE
PORT 0
BUFFER
PORT 1
FLIP-FLOP
PORT 2
FLIP-FLOP
PORT 0
FLIP-FLOP
DECODE
FILTER
MEMORY
BANK
FLIP-FLOPS
SINE WAVE
GENERATOR
8
8
HGF
REGISTER
LGF
REGISTER
8
8
PCD3349A
8
4
32
T1
8
8
8
8
8
8
LOWER
PROGRAM
COUNTER
5
8
PROGRAM
STATUS
WORD
8
8
8
8
8
8
MULTIPLEXER
TIMER/
EVENT
COUNTER
TEMPORARY
REGISTER 1
INTERRUPT
LOGIC
RAM
ADDRESS
REGISTER
ACCUMULATOR
ARITHMETIC
timer interrupt
TEMPORARY
REGISTER 2
INSTRUCTION
REGISTER
&
DECODER
CE / T0
LOGIC UNIT
POWER-ON-RESET
VPOR
T1
external interrupt
DECIMAL
ADJUST
CONDITIONAL
BRANCH
LOGIC
D
E
C
O
D
E
REGISTER 0
REGISTER 1
REGISTER 2
REGISTER 3
REGISTER 4
REGISTER 5
REGISTER 6
REGISTER 7
8 LEVEL STACK
(VARIABLE LENGTH)
OPTIONAL SECOND
REGISTER BANK
TIMER
FLAG
CARRY
DATA STORE
RESET
STOP
IDLE
ACC
CONTROL & TIMING
CE / T0
XTAL 2
OSCILLATOR
Fig.1 Block diagram.
RESIDENT RAM ARRAY
224 bytes
MBG098
Product specification
INITIALIZE
XTAL 1
ACC BIT
TEST
PCD3349A
INTERRUPT
RESET
handbook, full pagewidth
4
INTERNAL
CLOCK
FREQUENCY
30
HIGHER
PROGRAM
COUNTER
8-bit microcontroller with DTMF generator
BLOCK DIAGRAM
P0.0 to P0.7
RESIDENT ROM
Philips Semiconductors
4
1998 May 11
P1.0 to P1.7
P2.0 to P2.3
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
5
PINNING INFORMATION
5.1
5.2
Pinning
PCD3349A
Pin description
Table 1
SOT117-1 and SOT136-1 packages
SYMBOL
DESCRIPTION
P0.1
1
28 P0.0
P0.0 to P0.7 28, 1 to 7 Port 0: 8 quasi-bidirectional
I/O lines
P0.2
2
27 P2.3
T1
8
Test 1 or count input of 8-bit
Timer/event counter 1
P0.3
3
26 P2.2
XTAL1
9
P0.4
4
25 P2.1
crystal oscillator or external
clock input
P0.5
5
24 VDD
XTAL2
10
crystal oscillator output
23 TONE
RESET
11
reset input
CE/T0
12
Chip Enable or Test 0
handbook, halfpage
P0.6
6
P0.7
7
PCD3349A
22 VSS
T1
8
21 P2.0
XTAL1
9
20 P1.7
XTAL2 10
19 P1.6
RESET 11
18 P1.5
CE/T0 12
17 P1.4
P1.0 13
16 P1.3
P1.1 14
15 P1.2
MBG087
Fig.2 Pin configuration (SOT117-1 and SOT136-1).
1998 May 11
PIN
5
P1.0 to P1.7
13 to 20
Port 1: 8 quasi-bidirectional
I/O lines
P2.0 to P2.3
21, 25,
26, 27
Port 2: 4 quasi-bidirectional
I/O lines
VSS
22
ground
TONE
23
DTMF output
VDD
24
positive supply voltage
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
6
The TONE output can alternatively issue twelve modem
frequencies for data rates between 300 and 1200 bits/s.
FREQUENCY GENERATOR
A versatile frequency generator section is provided (see
Fig.3). For normal operation, use a 3.58 MHz quartz
crystal or PXE resonator. The frequency generator
includes precision circuitry for dual tone multifrequency
(DTMF) signals, which is typically used for tone dialling
telephone sets.
6.1
PCD3349A
In addition to DTMF and modem frequencies, two octaves
of musical scale in steps of semitones are available.
Frequency generator derivative registers
Table 2 gives the derivative addresses, mnemonics and access types of the frequency generator derivative registers.
The addresses 03H to FFH are not used.
Table 2
Addresses of the frequency generator derivative registers
ADDRESS
REGISTER
7
6
5
4
3
2
1
0
01H
HGF(1)
H7
H6
H5
H4
H3
H2
H1
H0
02H
LGF(2)
L7
L6
L5
L4
L3
L2
L1
L0
Notes
1. HGF = High Group Frequency; access type W.
2. LGF = Low Group Frequency; access type W.
dbook, full pagewidth
8
HGF
REGISTER
DIGITAL
SINE WAVE
SYNTHESIZER
DAC
SWITCHEDCAPACITOR
BANDGAP
VOLTAGE
REFERENCE
8 internal bus
SWITCHEDCAPACITOR
LOW-PASS FILTER
RC LOW-PASS
FILTER
MBG099
DAC
8
LGF
REGISTER
DIGITAL
SINE WAVE
SYNTHESIZER
Fig.3 Block diagram of the frequency generator section.
1998 May 11
6
TONE
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
6.2
Table 3
Frequency registers
The two frequency registers HGF and LGF define two
frequencies. From these, the digital sine synthesizers
together with the Digital-to-Analog Converters (DACs)
construct two sine waves. Their amplitudes are precisely
scaled according to the bandgap voltage reference. This
ensures TONE output levels independent of supply
voltage and temperature. The amplitude of the Low Group
Frequency sine wave is attenuated by 2 dB compared to
the amplitude of the High Group Frequency sine wave.
The two sine waves are summed and then filtered by an
on-chip switched capacitor and RC low-pass filters. These
guarantee that all DTMF tones generated fulfil the CEPT
recommendations with respect to amplitude, frequency
deviation, total harmonic distortion and suppression of
unwanted frequency components.
FREQUENCY (Hz)
The frequency limitation given by x ≥ 60 is due to the
low-pass filters which would attenuate higher frequency
sine waves.
DTMF frequencies
Assuming an oscillator frequency fxtal = 3.58 MHz, the
DTMF standard frequencies can be implemented as
shown in Table 3.
The relationship between telephone keyboard symbols
and the frequency register contents are given in Table 4.
7
DEVIATION
STANDARD
GENERATED
(%)
(Hz)
DD
697
697.90
0.13
0.90
C8
770
770.46
0.06
0.46
B5
852
850.45
−0.18
−1.55
A3
941
943.23
0.24
2.23
7F
1209
1206.45
−0.21
−2.55
72
1336
1341.66
0.42
5.66
67
1477
1482.21
0.35
5.21
5D
1633
1638.24
0.32
5.24
Dialling symbols, corresponding DTMF
frequency pairs and frequency registers content
TELEPHONE DTMF FREQ.
KEYBOARD
PAIRS
SYMBOLS
(Hz)
The frequency of the sine wave generated is dependent
upon the decimal value ‘x’ held in the frequency registers
(HGF and LGF), and this may be calculated as follows:
f xtal
f = --------------------------------; where 60 ≤ x ≤ 255.
[ 23 ( x + 2 ) ]
1998 May 11
DTMF standard frequencies and their
implementation; value = LGF, HGF contents
VALUE
(HEX)
Table 4
The value 00H in a frequency register stops the
corresponding digital sine synthesizer. If both frequency
registers contain 00H, the whole frequency generator is
shut off, resulting in lower power consumption.
6.3
PCD3349A
LGF
VALUE
(HEX)
HGF
VALUE
(HEX)
0
(941, 1336)
A3
72
1
(697, 1209)
DD
7F
2
(697, 1336)
DD
72
3
(697, 1477)
DD
67
4
(770, 1209)
C8
7F
5
(770, 1336)
C8
72
6
(770, 1477)
C8
67
7
(852, 1209)
B5
7F
8
(852, 1336)
B5
72
9
(852, 1477)
B5
67
A
(697, 1633)
DD
5D
B
(770, 1633)
C8
5D
C
(852, 1633)
B5
5D
D
(941, 1633)
A3
5D
•
(941, 1209)
A3
7F
#
(941, 1477)
A3
67
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
6.4
Table 6
Modem frequencies
Again assuming an oscillator frequency fxtal = 3.58 MHz,
the standard modem frequency pairs summarized in
Table 5 can be implemented. It is suggested to define the
frequency by the HGF register while the LGF register
contains 00H, disabling Low Group Frequency generation.
Table 5
HGF
VALU
E
(HEX)
FREQUENCY (Hz)
MODEM
GENERATED
DEVIATION
(%)
(Hz)
9D
980(1)
978.82
−0.12 −1.18
82
1180(1)
1179.03
−0.08 −0.97
8F
1070(2)
1073.33
79
1270(2)
80
1200(3)
45
Musical scale frequencies and their
implementation
HGF
VALUE
(HEX)
STANDARD(1)
GENERATED
D#5
F8
622.3
622.5
E5
EA
659.3
659.5
NOTE
Standard modem frequency pairs and their
implementation
PCD3349A
FREQUENCY (Hz)
F5
DD
698.5
697.9
F#5
D0
740.0
741.1
G5
C5
784.0
782.1
G#5
B9
830.6
832.3
A5
AF
880.0
879.3
A#5
A5
923.3
931.9
B5
9C
987.8
985.0
3.33
C6
93
1046.5
1044.5
1265.30
−0.37 −4.70
C#6
8A
1108.7
1111.7
1197.17
−0.24 −2.83
D6
82
1174.7
1179.0
2200(3)
2192.01
−0.36 −7.99
D#6
7B
1244.5
1245.1
76
1300(4)
1296.94
−0.24 −3.06
E6
74
1318.5
1318.9
48
2100(4)
2103.14
0.15
3.14
F6
6D
1396.9
1402.1
5C
1650(1)
1655.66
0.34
5.66
F#6
67
1480.0
1482.2
52
1850(1)
1852.77
0.15
2.77
G6
61
1568.0
1572.0
4B
2025(2)
2021.20
−0.19 −3.80
G#6
5C
1661.2
1655.7
44
2225(2)
2223.32
−0.08 −1.68
0.31
A6
56
1760.0
1768.5
Notes
A#6
51
1864.7
1875.1
1. Standard is V.21.
B6
4D
1975.5
1970.0
2. Standard is Bell 103.
3. Standard is Bell 202.
4. Standard is V.23.
6.5
Musical scale frequencies
48
2093.0
2103.3
44
2217.5
2223.3
D7
40
2349.3
2358.1
D#7
3D
2489.0
2470.4
Note
Finally, two octaves of musical scale in steps of semitones
can be realized, again assuming an oscillator frequency
fxtal = 3.58 MHz (Table 6). It is suggested to define the
frequency by the HGF register while the LGF contains
00H, disabling Low Group Frequency generation.
1998 May 11
C7
C#7
1. Standard scale based on A4 at 440 Hz.
8
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
7
TIMING
10 IDLE MODE
Although the PCD3349A operates over a clock frequency
range from 1 to 16 MHz, fxtal = 3.58 MHz will usually be
chosen to take full advantage of the frequency generator
section.
8
In the Idle mode, the frequency generator remains
operative.
11 INSTRUCTION SET RESTRICTIONS
Since no serial I/O interface is provided, the serial I/O
(Input/Output) instructions are not available. ‘MOV Dx, A’
is the only applicable derivative instruction because the
derivative registers are write-only.
RESET
In addition to the conditions given in the “PCD33xxA
Family” data sheet, all derivative registers are cleared in
the RESET state.
9
PCD3349A
ROM space being restricted to 4 kbytes, SEL MB2/3 would
define non-existing Program Memory banks and should
therefore be avoided.
STOP MODE
RAM space being restricted to 224 bytes, care should be
taken to avoid accesses to non-existing RAM locations.
Since the oscillator is switched off, the frequency
generator receives no clock. It is suggested to clear both
the HGF and LGF registers before entering Stop mode.
This will cut-off the biasing of the internal amplifiers,
considerably reducing current requirements.
12 SUMMARY OF MASK OPTIONS
Table 7
Port mask options
PORT OUTPUT DRIVE(1)
PORT STATE AFTER RESET(2)
PORT NAME
OPTION 1
OPTION 2
OPTION 3
SET
RESET
Port 0 (P0.0 to P0.7)
X
X
X
X
X
Port 1 (P1.0 to P1.7)
X
X
X
X
X
Port 2 (P2.0 to P2.7)
X
X
X
X
X
Notes
1. Port output drives:
a) Option 1: standard I/O.
b) Option 2: open-drain I/O.
c) Option 3: push-pull output; see “PCD33xxA Family” data sheet.
2. Port state after reset: S = Set (HIGH) and R = Reset (LOW).
Table 8
Mask options
FEATURE
DESCRIPTION
ROM code: program/data
Any mix of instructions and data up to ROM size of 4 kbytes.
Power-on-reset voltage level: VPOR
1.2 to 3.6 V in increments of 100 mV; OFF
Oscillator transconductance: gm
LOW transconductance: gmL
MEDIUM transconductance: gmM
HIGH transconductance: gmH
1998 May 11
9
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
13 LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134); see note 1 and 2.
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
VDD
supply voltage
−0.5
+7.0
VI
all input voltages
−0.5
VDD + 0.5 V
II, IO
DC input or output current
−10
+10
mA
Ptot
total power dissipation
−
125
mW
PO
power dissipation per output
−
30
mW
ISS
ground supply current
−50
+50
mA
Tstg
storage temperature
−65
+150
°C
Tj
operating junction temperature
−
90
°C
V
Notes
1. Stresses above those listed under Limiting Values may cause permanent damage to the device.
2. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to
VSS unless otherwise noted.
14 HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However, it is good practice to take
normal precautions appropriate to handling MOS devices (see “Handling MOS devices”).
15 DC CHARACTERISTICS
VDD = 1.8 to 6 V; VSS = 0 V; Tamb = −25 to +70 °C; all voltages with respect to VSS; fxtal = 3.58 MHz (gmL); unless
otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply (see Figs 5 to 9)
VDD
IDD
IDD(idle)
IDD(stp)
supply voltage
operating; note 1
1.8
−
6
V
RAM data retention in
Stop mode
1.0
−
6
V
operating supply current;
note 2
supply current Idle mode;
note 2
supply current Stop mode
1998 May 11
VDD = 3 V; value HGF ≠ 0 and/or LGF ≠ 0
−
0.9
1.8
mA
VDD = 3 V
−
0.3
0.6
mA
VDD = 5 V; fxtal = 10 MHz (gmL)
−
1.1
3.0
mA
VDD = 5 V; fxtal = 16 MHz (gmM)
−
1.7
5.0
mA
VDD = 5 V; fxtal = 16 MHz (gmH)
−
2.5
6.0
mA
VDD = 3 V; value HGF ≠ 0 and/or LGF ≠ 0
−
0.7
1.4
mA
VDD = 3 V; value HGF = LGF = 0
−
0.2
0.4
mA
VDD = 5 V; fxtal = 10 MHz (gmL)
−
0.8
1.6
mA
VDD = 5 V; fxtal = 16 MHz (gmM)
−
1.2
4.0
mA
VDD = 5 V; fxtal = 16 MHz (gmH)
−
1.7
5.0
mA
VDD = 1.8 V; Tamb = 25 °C; note 3
−
1.0
2.5
µA
VDD = 1.8 V; Tamb = 70 °C; note 3
−
−
10
µA
10
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
SYMBOL
PARAMETER
PCD3349A
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Inputs
−
VIL
LOW-level input voltage
0
VIH
HIGH-level input voltage
0.7VDD −
VDD
0.3VDD V
V
IIL
input leakage current
VSS ≤ VI ≤ VDD
−1
−
+1
µA
Port outputs (see Figs 10 to 12)
IOL
LOW-level port sink
current
VDD = 3 V; VO = 0.4 V
0.7
3.5
−
mA
IOH
HIGH-level port pull-up
source current
VO = 2.7 V; VDD = 3 V
−10
−20
−
µA
VO = 0 V; VDD = 3 V
−
−100
−300
µA
IOH
HIGH-level port push-pull
source current
VDD = 3 V; VO = 2.6 V
−0.7
−4
−
mA
TONE output (see Fig.4; notes 1 and 4)
VHGrms
HGF voltage (RMS)
158
181
205
mV
VLGrms
LGF voltage (RMS)
125
142
160
mV
∆f ⁄ f
frequency deviation
−0.6
−
0.6
%
VDC
DC voltage level
−
0.5VDD −
V
ZO
output impedance
−
100
500
Ω
VG
pre-emphasis of group
1.5
2.0
2.5
dB
THD
total harmonic distortion
Tamb = 25 °C; note 5
−
25
−
dB
note 6
−0.5
0
+0.5
V
Power-on-reset
∆VPOR
Power-on-reset level
variation around chosen
VPOR
Notes
1. TONE output requires VDD ≥ 2.5 V.
2. VIL = VSS; VIH = VDD; open-drain outputs connected to VSS; all other outputs open; value HGF = LGF = 0, unless
otherwise specified.
3. Crystal connected between XTAL1 and XTAL2; pins T1 and CE/T0 at VSS; value HGF = LGF = 0.
4. Values are specified for DTMF frequencies only (CEPT).
5. Related to the Low Group Frequency (LGF) component (CEPT).
6. VPOR is an option chosen by the user. Depending on its value, it may restrict the supply voltage range.
1998 May 11
11
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
MGB826
6
handbook, halfpage
IDD(stp)
(µA)
5
handbook, halfpage VDD
4
DEVICE TYPE NUMBER
(1)
1 µF
TONE
3
10 kΩ
50 pF
2
VSS
MGB835
1
0
1
3
5
VDD (V)
7
(1) Device type number: PCD3349A
Fig.5
Typical supply current (IDD) in Stop mode as
a function of supply voltage (VDD).
Fig.4 TONE output test circuit.
MGB827
6
MGB828
6
handbook, halfpage
handbook, halfpage
IDD
(mA)
IDD
(mA)
16 MHz
4
4
5V
3.58 MHz
HGF or LGF ≠ 0
10 MHz
2
2
3.58 MHz
3V
0
0
1
3
5
VDD (V)
7
1
10
fxtal (MHz)
Measured with crystal between XTAL1 and XTAL2.
Measured with function generator on XTAL1.
Fig.6
Fig.7
Typical operating supply current (IDD) as a
function of supply voltage (VDD).
1998 May 11
12
10
2
Typical operating supply current (IDD) as a
function of clock frequency (fxtal).
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
MGB829
6
MGB830
6
handbook, halfpage
handbook, halfpage
IDD(idle)
(mA)
IDD(idle)
(mA)
4
4
16 MHz
3.58 MHz
HGF or LGF ≠ 0
2
2
5V
10 MHz
3V
3.58 MHz
0
0
1
3
5
7
VDD (V)
1
10
fxtal (MHz)
Measured with crystal between XTAL1 and XTAL2.
Measured with function generator on XTAL1.
Fig.8
Fig.9
Typical supply current (IDD) in Idle mode as
a function of supply voltage (VDD).
MGB831
2
Typical supply current (IDD) in Idle mode as
a function of clock frequency (fxtal).
MBG095
−300
12
10
handbook, halfpage
handbook, halfpage
IOL
(mA)
IOH
(µA)
−200
8
VO = V SS
−100
4
VO = 0.9VDD
0
0
1
3
5
VDD (V)
7
1
3
5
VDD (V)
7
VO = 0.4 V.
Fig.11 Typical HIGH-level output pull-up source
current (IOH) as a function of supply voltage
(VDD).
Fig.10 Typical LOW-level port output sink current
(IOL) as a function of supply voltage (VDD).
1998 May 11
13
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
MGD495
MGB833
−12
PCD3349A
6
handbook, halfpage
handbook, halfpage
IOH1
(mA)
VDD
(V)
−8
4
−4
2
VPOR = 2.0 V
VPOR = 1.3 V
0
1
3
5
VDD (V)
0
−25
7
25
75
125
Tamb (°C)
70
VO = VDD − 0.4 V.
Fig.12 Typical HIGH-level push-pull output source
current (IOH) as a function of supply voltage
(VDD).
1998 May 11
Fig.13 Typical Power-on-reset level (VPOR) as
function of temperature.
14
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
16 AC CHARACTERISTICS
VDD = 1.8 to 6 V; VSS = 0 V; Tamb = −25 to +70 °C; all voltages with respect to VSS; unless otherwise specified.
SYMBOL
PARAMETER
tr
rise time all outputs
tf
fall time all outputs
fxtal
clock frequency
CONDITIONS
MIN.
VDD = 5 V; Tamb = 25 °C; CL = 50 pF
TYP.
MAX.
UNIT
−
30
−
ns
−
30
−
ns
see Fig.14
1
−
16
MHz
VDD = 5 V
Oscillator (see Fig.15)
gmL
LOW transconductance
0.2
0.4
1.0
mS
gmM
MEDIUM transconductance
0.9
1.6
3.2
mS
gmH
HIGH transconductance
3.0
4.5
9.0
mS
RF
feedback resistor
0.3
1.0
3.0
MΩ
MLA493
18
xtal
(MHz)
15
MBG097
10
handbook,
halfpage
f
handbook, halfpage
gmH
gm
(mS)
gmM
12
1
9
guaranteed
operating range
6
gmL
3
10
0
1
3
5
VDD (V)
7
Fig.14 Maximum clock frequency (fxtal) as a
function of supply voltage (VDD).
1998 May 11
−1
1
3
5
VDD (V)
7
Fig.15 Typical transconductance as a function of
supply voltage (VDD).
15
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
17 PACKAGE OUTLINES
seating plane
handbook, full
pagewidthdual in-line package; 28 leads (600 mil)
DIP28:
plastic
SOT117-1
ME
D
A2
L
A
A1
c
e
Z
w M
b1
(e 1)
b
MH
15
28
pin 1 index
E
1
14
0
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
A
max.
A1
min.
A2
max.
b
b1
c
D (1)
E (1)
e
e1
L
ME
MH
w
Z (1)
max.
mm
5.1
0.51
4.0
1.7
1.3
0.53
0.38
0.32
0.23
36.0
35.0
14.1
13.7
2.54
15.24
3.9
3.4
15.80
15.24
17.15
15.90
0.25
1.7
inches
0.20
0.020
0.16
0.066
0.051
0.020
0.014
0.013
0.009
1.41
1.34
0.56
0.54
0.10
0.60
0.15
0.13
0.62
0.60
0.68
0.63
0.01
0.067
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT117-1
051G05
MO-015AH
1998 May 11
EIAJ
EUROPEAN
PROJECTION
ISSUE DATE
92-11-17
95-01-14
16
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
SO28: plastic small outline package; 28 leads; body width 7.5 mm
SOT136-1
D
E
A
X
c
y
HE
v M A
Z
15
28
Q
A2
A
(A 3)
A1
pin 1 index
θ
Lp
L
1
14
e
bp
0
detail X
w M
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
HE
L
Lp
Q
v
w
y
mm
2.65
0.30
0.10
2.45
2.25
0.25
0.49
0.36
0.32
0.23
18.1
17.7
7.6
7.4
1.27
10.65
10.00
1.4
1.1
0.4
1.1
1.0
0.25
0.25
0.1
0.9
0.4
0.012 0.096
0.004 0.089
0.01
0.019 0.013
0.014 0.009
0.71
0.69
0.30
0.29
0.050
0.419
0.043
0.055
0.394
0.016
0.043
0.039
0.01
0.01
0.004
0.035
0.016
inches
0.10
Z
(1)
θ
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT136-1
075E06
MS-013AE
1998 May 11
EIAJ
EUROPEAN
PROJECTION
ISSUE DATE
95-01-24
97-05-22
17
o
8
0o
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.
18 SOLDERING
18.1
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.
18.3.2
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “Data Handbook IC26; Integrated Circuit Packages”
(order code 9398 652 90011).
18.2
18.2.1
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.
DIP
• The longitudinal axis of the package footprint must be
parallel to the solder flow.
SOLDERING BY DIPPING OR BY WAVE
• The package footprint must incorporate solder thieves at
the downstream end.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (Tstg max). If the
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.
REPAIRING SOLDERED JOINTS
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300 °C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400 °C, contact may be up to 5 seconds.
18.3
18.3.1
18.3.3
REPAIRING SOLDERED JOINTS
Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.
SO
REFLOW SOLDERING
Reflow soldering techniques are suitable for all SO
packages.
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
1998 May 11
WAVE SOLDERING
Wave soldering techniques can be used for all SO
packages if the following conditions are observed:
The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.
18.2.2
PCD3349A
18
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
19 DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
20 LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1998 May 11
19
Philips Semiconductors – a worldwide company
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Philippines: Philips Semiconductors Philippines Inc.,
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For all other countries apply to: Philips Semiconductors,
International Marketing & Sales Communications, Building BE-p, P.O. Box 218,
5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825
Internet: http://www.semiconductors.philips.com
© Philips Electronics N.V. 1998
SCA60
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
415102/1200/05/pp20
Date of release: 1998 May 11
Document order number:
9397 750 03605