功能敍述：
音?內(nèi)容：聖誕水晶音?15首(?似winlead)
1. jingle bells
2. o christmas tree
3. the first noel
4. we wish you a merry christmas
5. hark! the herald angels sing
6. ave maria
7. o little town of bethlehem
8. jesus, joy of men””s desiring
9. deck the halls
10. angels we have heard on high
11. joy to the world
12.o come all ye faithful
13. it came upon midnight clear
14. silent night
15. upon the housetop

直???：
電源電壓 vdd : 1.8 ~ 5.5v
靜態(tài)電? isb ≤ 0.1ua @4.5v
工作電? (無負載) iop : 1.5ma @4.5v
io輸入電? iih : 10ua @4.5v
io輸出電? iol : 25ma @4.5v (constant sink current)
內(nèi)置震盪電阻 int_osc : +/- 1.5% 誤差
觸發(fā)方式：
oky1 : l/u/r, level-sequential
debounce time : long
pull low resistance : cds+1m
io1 / io2 / io3 / io4 / o5 : flash with melody
(constant sink current)
pwm : large