Hitachi H8S/2215 Series, Hardware Manual

Page: 730 / 745

Rev. 3.0, 10/02, page 672 of 686
24.7 D/A Conversion Characteristics
Table 24.10 lists the D/A conversion characteristics.
Table 24.10 D/A Conversion Characteristics
Conditions: V
CC
= PLL V
CC
=Dr V
CC
=2.7 V to 3.6 V, Vref=2.7 V to AV
CC
, V
SS
= PLLAV
SS
=
Dr V
SS
=AV
SS
= 0 V,
φ
=13 MHz to 16 MHz,
T
a
= –20°C to +75°C (regular specifications), T
a
= –40°C to +85°C (wide-range
specifications)
Item Min Typ Max Unit Test Condition
Resolution 8 8 8 bits
Conversion time — — 10 µs Load capacitance = 20 pF
— ±2.0 ±3.0 LSB Load capacitance = 2 M
Ω
Absolute accuracy
— — ±2.0 LSB Load capacitance = 4 M
Ω
24.8 Flash Memory Characteristics
Table 24.11 Flash Memory Characteristics
Conditions: V
CC
= PLLV
CC
=DrV
CC
= 3.0 V to 3.6 V, AV
CC
= 2.7 V to 3.6 V, Vref = 2.7 V to
AV
CC
, V
SS
= PLLV
SS
= DrV
SS
= AV
SS
= 0 V,
T
a
= –20 to +75°C (Programming / erasing operating temperature range)
Item Symbol Min Typ Max Unit
Programming time *
1
*
2,
*
4
t
P
— 10 200 ms/128 bytes
Erase time
*
1,
*
3,
*
5
t
E
— 50 1000 ms/block
Reprogramming count N
WEC
100
*
6
10,000
*
7
100 Times
Data retention time *
8
t
DRP
10 — — Years
Programming Wait time after PSU1 bit setting *
1
y 50 50 — µs
Wait time after P1 bit setting
*
1
*
4
z0 28 30 32 µs
z1 198 200 202 µs
z2 8 10 12 µs
Wait time after P1 bit clear *
1
α
5 5 — µs
Wait time after PSU1 bit clear
*
1
β
5 5 — µs
Wait time after PV1 bit setting
*
1
γ
4 4 — µs
Wait time after H’FF dummy write *
1
ε
2 2 — µs
Wait time after PV1 bit clear *
1
η
2 2 — µs
Maximum programming count
*
1
*
4
N1 — — 6
*
4
Times
N2 — — 994
*
4
Times