PCA2002 Datasheet, PDF (11/20 Pages) NXP Semiconductors – 32 kHz watch circuit with programmable output period and pulse width

Philips Semiconductors
32 kHz watch circuit with programmable
output period and pulse width
Product specification
PCA2002
OTP PROGRAMMING CHARACTERISTICS
SYMBOL
V_DD
V_P(start)
V_P(stop)
V_P(mod)
V_pre-store
V_store
I_store
t_p(start)
t_p(stop)
t_mod
t_pre-store
t_store
t₀
t₁
t₂
t₃
t₄
SR
R_read
PARAMETER⁽¹⁾
supply voltage during programming procedure
supply voltage for starting programming procedure
supply voltage for stopping programming procedure
supply voltage modulation for entering instructions
supply voltage for pre-store pulse
supply voltage for writing to the OTP cells
supply current for writing to the OTP cells
pulse width of start pulse
pulse width of stop pulse
modulation pulse width
pulse width of pre-store pulse
pulse width for writing to the OTP cells
waiting time after start pulse
pulse distance for incrementing the state counter
pulse distance for clocking the data register with
data = logic 0
pulse distance for clocking the data register with
data = logic 1
waiting time for writing to the OTP cells
slew rate for modulation of the supply voltage
read out resistor for supply current modulation
Note
1. Programme each word once only.
MIN.
1.5
6.6
6.2
320
6.2
9.9
−
8
0.05
25
0.05
95
20
0.6
1.6
2.6
0.1
0.5
18
TYP.
−
−
−
350
−
10.0
−
10
−
30
−
100
−
0.7
1.7
2.7
0.2
−
30
MAX.
3.0
6.8
6.4
380
6.4
10.1
10
12
0.5
40
0.5
110
30
0.8
1.8
2.8
0.3
5
45
UNIT
V
V
V
mV
V
V
mA
ms
ms
µs
ms
ms
ms
ms
ms
ms
ms
V/µs
kΩ
2004 Jan 20
11